MATH & GEOMETRY Vocabulary and Terminology in English

562,232 views ・ 2017-09-18

Adam’s English Lessons


μ•„λž˜ μ˜λ¬Έμžλ§‰μ„ λ”λΈ”ν΄λ¦­ν•˜μ‹œλ©΄ μ˜μƒμ΄ μž¬μƒλ©λ‹ˆλ‹€. λ²ˆμ—­λœ μžλ§‰μ€ 기계 λ²ˆμ—­λ©λ‹ˆλ‹€.

00:00
Hi. Welcome to www.engvid.com.
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μ•ˆλ…•. www.engvid.com에 μ˜€μ‹  것을 ν™˜μ˜ν•©λ‹ˆλ‹€.
00:02
I'm Adam.
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μ €λŠ” μ•„λ‹΄μž…λ‹ˆλ‹€.
00:03
In today's video I'm going to look at some math.
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였늘 μ˜μƒμ—μ„œλŠ” μˆ˜ν•™μ„ μ’€ λ³Όκ²Œμš”.
00:08
Now, I know this is an English site, don't worry, I'm not actually going to do any math.
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자, μ €λŠ” 이것이 μ˜μ–΄ μ‚¬μ΄νŠΈλΌλŠ” 것을 μ•Œκ³  μžˆμŠ΅λ‹ˆλ‹€. κ±±μ •ν•˜μ§€ λ§ˆμ„Έμš” . μ €λŠ” μ‹€μ œλ‘œ μ–΄λ–€ μˆ˜ν•™λ„ ν•˜μ§€ μ•Šμ„ κ²ƒμž…λ‹ˆλ‹€.
00:13
Philosophy and English major, so math not my favourite, but I will give you some math
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μ² ν•™κ³Ό μ˜λ¬Έν•™ 전곡이라 μˆ˜ν•™μ€ λ‚΄κ°€ μ’‹μ•„ν•˜λŠ” κ³Όλͺ©μ€ μ•„λ‹ˆμ§€λ§Œ, μˆ˜ν•™μ„ ν•˜λ €λ©΄ ν•„μš”ν•œ 단어인 μˆ˜ν•™ μš©μ–΄λ₯Ό μ•Œλ €μ€„κ²Œ
00:19
terminology, words that you need if you're going to do math.
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.
00:24
Now, a lot of you might be engineers or you might be students who came from another country
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자, λ§Žμ€ 뢄듀이 μ—”μ§€λ‹ˆμ–΄μ΄κ±°λ‚˜ λ‹€λ₯Έ λ‚˜λΌμ—μ„œ μ˜μ–΄κΆŒ κ΅­κ°€λ‘œ 온 학생일 수 μžˆμŠ΅λ‹ˆλ‹€
00:30
to an English-speaking country, and you go to math class and you know the math, but you're
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. μˆ˜ν•™ μˆ˜μ—…μ„ λ“£κ³  μˆ˜ν•™μ€ μ•Œμ§€λ§Œ
00:35
not sure of the wording.
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ν‘œν˜„μ€ 잘 λͺ¨λ¦…λ‹ˆλ‹€.
00:37
Okay?
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μ’‹μ•„μš”?
00:38
So this is what we're looking at, terminology, only the words that you need to go into a
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이것이 μš°λ¦¬κ°€ 보고 μžˆλŠ” μš©μ–΄μž…λ‹ˆλ‹€.
00:42
math class or to do some math on your own.
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μˆ˜ν•™ μˆ˜μ—…μ— λ“€μ–΄κ°€κ±°λ‚˜ 슀슀둜 μˆ˜ν•™μ„ ν•˜κΈ° μœ„ν•΄ ν•„μš”ν•œ λ‹¨μ–΄μž…λ‹ˆλ‹€.
00:45
Okay?
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μ’‹μ•„μš”?
00:46
We're going to start with the very basics.
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μ•„μ£Ό 기본적인 것뢀터 μ‹œμž‘ν•˜κ² μŠ΅λ‹ˆλ‹€.
00:48
You know all these functions already.
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이 λͺ¨λ“  κΈ°λŠ₯을 이미 μ•Œκ³  μžˆμŠ΅λ‹ˆλ‹€.
00:51
I'm just going to give you some ways to talk about them, and then we'll move on to some
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λ‚˜λŠ” 그듀에 λŒ€ν•΄ 이야기할 수 μžˆλŠ” λͺ‡ 가지 방법을 μ œκ³΅ν•  κ²ƒμž…λ‹ˆλ‹€ . 그런 λ‹€μŒ
00:55
other functions and other parts.
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λ‹€λ₯Έ κΈ°λŠ₯κ³Ό λ‹€λ₯Έ λΆ€λΆ„μœΌλ‘œ λ„˜μ–΄κ°ˆ κ²ƒμž…λ‹ˆλ‹€.
00:58
So, you know the four basic functions: "addition", "subtraction", "multiplication", and "division".
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λ”°λΌμ„œ "λ”ν•˜κΈ°", "λΉΌκΈ°", "κ³±ν•˜κΈ°" 및 "λ‚˜λˆ„κΈ°"의 λ„€ 가지 κΈ°λ³Έ κΈ°λŠ₯을 μ•Œκ³  μžˆμŠ΅λ‹ˆλ‹€.
01:05
What you need to know is ways to say an equation.
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당신이 μ•Œμ•„μ•Ό ν•  것은 방정식을 λ§ν•˜λŠ” λ°©λ²•μž…λ‹ˆλ‹€.
01:09
Right? You know an equation.
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였λ₯Έμͺ½? 당신은 방정식을 μ•Œκ³  μžˆμŠ΅λ‹ˆλ‹€.
01:14
"1 + 1 = 2", that's an equation.
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"1 + 1 = 2", 그것은 λ°©μ •μ‹μž…λ‹ˆλ‹€.
01:16
"x2 + y3 = znth",
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"x2 + y3 = znth",
01:21
that's also an equation which I'm not even going to get into.
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그것은 λ˜ν•œ λ‚΄κ°€ 닀루지 μ•Šμ„ 방정식이기도 ν•©λ‹ˆλ‹€.
01:24
So, let's start with addition.
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λ§μ…ˆλΆ€ν„° μ‹œμž‘ν•©μ‹œλ‹€.
01:26
The way to talk about addition.
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λ§μ…ˆμ— λŒ€ν•΄ μ΄μ•ΌκΈ°ν•˜λŠ” 방식.
01:27
You can say: "1 plus 1", "plus", of course is "+" symbol, that's the plus symbol.
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"1 λ”ν•˜κΈ° 1", "λ”ν•˜κΈ°"λŠ” λ¬Όλ‘  "+" 기호이고 λ”ν•˜κΈ° 기호라고 말할 수 μžˆμŠ΅λ‹ˆλ‹€.
01:33
"1 plus 1 equals 2."
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"1 λ”ν•˜κΈ° 1은 2μž…λ‹ˆλ‹€."
01:36
2 means the total, is also called the "sum".
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2λŠ” 합계λ₯Ό μ˜λ―Έν•˜λ©° "합계"라고도 ν•©λ‹ˆλ‹€.
01:40
Now, you can also say: "The sum of 1 and 1 is 2."
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이제 "1κ³Ό 1의 합은 2μž…λ‹ˆλ‹€."라고 말할 μˆ˜λ„ μžˆμŠ΅λ‹ˆλ‹€.
01:45
You can also just say, without this part: "1 and 1 is 2."
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이 λΆ€λΆ„ 없이 "1κ³Ό 1은 2μž…λ‹ˆλ‹€."라고 말할 μˆ˜λ„ μžˆμŠ΅λ‹ˆλ‹€.
01:50
So you don't need the plus, you don't need the equal; you can use "and" and "is", but
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κ·Έλž˜μ„œ 당신은 λ”ν•˜κΈ°κ°€ ν•„μš”ν•˜μ§€ μ•ŠμŠ΅λ‹ˆλ‹€, 당신은 동등이 ν•„μš”ν•˜μ§€ μ•ŠμŠ΅λ‹ˆλ‹€ ; "and"와 "is"λ₯Ό μ‚¬μš©ν•  수 μžˆμ§€λ§Œ
01:54
it means the same thing.
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같은 μ˜λ―Έμž…λ‹ˆλ‹€.
01:55
Everybody will understand you're making...
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λͺ¨λ‘κ°€ 당신이 λ§Œλ“€κ³  μžˆλ‹€λŠ” 것을 이해할 κ²ƒμž…λ‹ˆλ‹€.
01:57
You're doing addition.
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당신은 λ§μ…ˆμ„ ν•˜κ³  μžˆμŠ΅λ‹ˆλ‹€.
01:58
Sorry. Doing addition, not making.
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μ£„μ†‘ν•©λ‹ˆλ‹€. λ§Œλ“œλŠ” 것이 μ•„λ‹ˆλΌ λ”ν•˜λŠ” 것.
02:01
If you add 1 and 1, you get 2.
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1κ³Ό 1을 λ”ν•˜λ©΄ 2κ°€ λ©λ‹ˆλ‹€.
02:04
Okay? So: "add" and "get", other words you can use to express the equation.
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μ•Œμ•˜μ£ ? λ”°λΌμ„œ "μΆ”κ°€" 및 "κ°€μ Έμ˜€κΈ°" λ“± 방정식을 ν‘œν˜„ν•˜λŠ” 데 μ‚¬μš©ν•  수 μžˆλŠ” λ‹€λ₯Έ λ‹¨μ–΄μž…λ‹ˆλ‹€.
02:11
Now, if you're doing math problems, math problems are word problems.
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이제 μˆ˜ν•™ 문제λ₯Ό ν’€κ³  μžˆλ‹€λ©΄ μˆ˜ν•™ λ¬Έμ œλŠ” 단어 λ¬Έμ œμž…λ‹ˆλ‹€.
02:16
I know a lot of you have a hard time understanding the question because of the words, so different
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λ§Žμ€ 뢄듀이 단어 λ•Œλ¬Έμ— μ§ˆλ¬Έμ„ μ΄ν•΄ν•˜λŠ” 데 어렀움을 κ²ͺκ³  μžˆλ‹€λŠ” 것을 μ•Œκ³  μžˆμŠ΅λ‹ˆλ‹€. λ”°λΌμ„œ
02:21
ways to look at these functions using different words, different verbs especially.
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λ‹€λ₯Έ 단어, 특히 λ‹€λ₯Έ 동사λ₯Ό μ‚¬μš©ν•˜μ—¬ μ΄λŸ¬ν•œ κΈ°λŠ₯을 λ³΄λŠ” λ‹€λ₯Έ 방법이 μžˆμŠ΅λ‹ˆλ‹€.
02:27
If we look at subtraction: "10 minus 5 equals 5".
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λΊ„μ…ˆμ„ 보면 "10 λΉΌκΈ° 5λŠ” 5와 κ°™μŠ΅λ‹ˆλ‹€."
02:32
"5", the answer is also called the "difference".
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"5", 닡은 "차이점"이라고도 ν•©λ‹ˆλ‹€.
02:35
For addition it's the "sum", for subtraction it's "difference".
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λ§μ…ˆμ€ "ν•©", λΊ„μ…ˆμ€ "차이"μž…λ‹ˆλ‹€.
02:39
"10, subtract 5 gives you 5."
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"10μ—μ„œ 5λ₯Ό λΉΌλ©΄ 5κ°€ λ©λ‹ˆλ‹€."
02:44
Or: "10 deduct"-means take away-"5", we can also say: "Take 5 away"...
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λ˜λŠ”: "10 곡제"-제거λ₯Ό μ˜λ―Έν•©λ‹ˆλ‹€-"5", μš°λ¦¬λŠ” λ˜ν•œ 말할 수 μžˆμŠ΅λ‹ˆλ‹€: "Take 5 away"...
02:50
Oh, I forgot a word here. Sorry.
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μ•„, μ—¬κΈ°μ„œ 단어λ₯Ό μžŠμ—ˆμŠ΅λ‹ˆλ‹€. μ£„μ†‘ν•©λ‹ˆλ‹€.
02:54
"Take 5 away from 10, you get", okay?
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"10μ—μ„œ 5λ₯Ό λΉΌλ©΄ λ©λ‹ˆλ‹€. ", μ•Œμ•˜μ£ ?
02:58
"10 subtract 5", you can say: "gives you 5",
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"10 λΉΌκΈ° 5", "5λ₯Ό μ€λ‹ˆλ‹€"라고 말할 수 μžˆμŠ΅λ‹ˆλ‹€.
03:06
sorry, I had to think about that.
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μ£„μ†‘ν•©λ‹ˆλ‹€. 그것에 λŒ€ν•΄ 생각해야 ν–ˆμŠ΅λ‹ˆλ‹€.
03:07
Math, not my specialty.
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λ‚΄ 전곡이 μ•„λ‹Œ μˆ˜ν•™.
03:09
So: "Take 5 away from 5, you get 5", "Take 5 away from 5, you're left with",
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λ”°λΌμ„œ "5μ—μ„œ 5λ₯Ό λΉΌλ©΄ 5κ°€ λ©λ‹ˆλ‹€", " 5μ—μ„œ 5λ₯Ό λΉΌλ©΄ λ‚¨μŠ΅λ‹ˆλ‹€",
03:15
"left with" means what remains.
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"남닀"λŠ” 남은 것을 μ˜λ―Έν•©λ‹ˆλ‹€.
03:18
Okay, so again, different ways to say the exact same thing.
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μ’‹μ•„μš”, λ‹€μ‹œ λ§ν•˜μ§€λ§Œ, μ •ν™•νžˆ 같은 것을 λ§ν•˜λŠ” λ‹€λ₯Έ λ°©λ²•μž…λ‹ˆλ‹€.
03:23
So if you see different math problems in different language you can understand what they're saying.
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λ”°λΌμ„œ λ‹€λ₯Έ μ–Έμ–΄λ‘œ 된 λ‹€λ₯Έ μˆ˜ν•™ 문제λ₯Ό 보면 그듀이 λ§ν•˜λŠ” λ‚΄μš©μ„ 이해할 수 μžˆμŠ΅λ‹ˆλ‹€.
03:28
Okay?
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μ’‹μ•„μš”?
03:29
Multiplication.
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κ³±μ…ˆ.
03:31
"5 times 5", that's: "5 times 5 equals 25".
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"5 κ³±ν•˜κΈ° 5", 즉 "5 κ³±ν•˜κΈ° 5λŠ” 25"μž…λ‹ˆλ‹€.
03:36
"25" is the "product", the answer to the multiplication, the product.
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"25"λŠ” "κ³±", κ³±μ…ˆμ— λŒ€ν•œ λ‹΅, κ³±μž…λ‹ˆλ‹€.
03:41
"5 multiplied by 5", don't forget the "by".
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"5 κ³±ν•˜κΈ° 5", "by"λ₯Ό μžŠμ§€ λ§ˆμ„Έμš”.
03:46
"5 multiplied by 5 is 25", "is", "gives you", "gets", etc.
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"5 κ³±ν•˜κΈ° 5λŠ” 25", "is", " gives", "gets" λ“±. 그런
03:52
Then we go to division.
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λ‹€μŒ λ‚˜λˆ—μ…ˆμœΌλ‘œ μ΄λ™ν•©λ‹ˆλ‹€.
03:55
"9 divided by 3 equals 3", "3", the answer is called the "quotient".
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"9 λ‚˜λˆ„κΈ° 3 = 3", "3", 닡을 "λͺ«"이라고 ν•©λ‹ˆλ‹€.
04:02
This is a "q".
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이것은 "q"μž…λ‹ˆλ‹€.
04:04
I don't have a very pretty "q", but it's a "q".
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λ‚˜λŠ” μ•„μ£Ό 예쁜 "q"κ°€ μ—†μ§€λ§Œ "q"μž…λ‹ˆλ‹€.
04:06
"Quotient".
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"λͺ«".
04:07
Okay?
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μ’‹μ•„μš”?
04:08
"3 goes into... 3 goes into 9 three times",
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"3이 λ“€μ–΄κ°„λ‹€... 3이 9에 μ„Έ 번 λ“€μ–΄κ°„λ‹€",
04:13
so you can reverse the order of the equation.
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κ·Έλž˜μ„œ λ°©μ •μ‹μ˜ μˆœμ„œλ₯Ό λ°˜λŒ€λ‘œ ν•  수 μžˆμŠ΅λ‹ˆλ‹€.
04:18
Here, when...
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μ—¬κΈ°μ—μ„œ...
04:19
In addition, subtraction, multiplication...
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κ²Œλ‹€κ°€ λΊ„μ…ˆ, κ³±μ…ˆ...
04:22
Well, actually addition and multiplication you can reverse the order and it says the
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음, μ‹€μ œλ‘œ λ§μ…ˆκ³Ό κ³±μ…ˆμ€ μˆœμ„œλ₯Ό λ°˜λŒ€λ‘œ ν•  수 있고
04:25
same thing.
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같은 것을 λ§ν•©λ‹ˆλ‹€.
04:26
Here you have to reverse the order: "goes into" as opposed to "divided by",
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μ—¬κΈ°μ—μ„œ "divided by"와 λ°˜λŒ€λ˜λŠ” "goes into" μˆœμ„œλ₯Ό λ°˜λŒ€λ‘œ ν•΄μ•Ό ν•˜λ―€λ‘œ μ „μΉ˜μ‚¬
04:32
so pay attention to the prepositions as well.
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에도 주의λ₯Ό κΈ°μšΈμ—¬μ•Ό ν•©λ‹ˆλ‹€ .
04:35
Gives you...
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λ‹Ήμ‹ μ—κ²Œ...
04:38
Sorry. "3 goes into 9 three times", there's your answer.
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μ£„μ†‘ν•©λ‹ˆλ‹€. "3은 9에 μ„Έ 번 λ“€μ–΄κ°„λ‹€", 닡이 μžˆμŠ΅λ‹ˆλ‹€.
04:41
"10 divided by 4", now, sometimes you get an uneven number.
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"10 λ‚˜λˆ„κΈ° 4", 이제 λ•Œλ•Œλ‘œ ν™€μˆ˜λ₯Ό 얻을 수 μžˆμŠ΅λ‹ˆλ‹€.
04:45
So: "10 divided by 4" gives you 2 with a remainder of 2, so: "2 remainder 2".
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λ”°λΌμ„œ "10 λ‚˜λˆ„κΈ° 4"λŠ” 2이고 λ‚˜λ¨Έμ§€λŠ” 2μ΄λ―€λ‘œ "2 λ‚˜λ¨Έμ§€ 2"μž…λ‹ˆλ‹€.
04:51
Sometimes it'll be "2R2", you might see it like that.
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가끔은 "2R2"κ°€ 될 μˆ˜λ„ 있고, κ·Έλ ‡κ²Œ λ³Ό μˆ˜λ„ μžˆμŠ΅λ‹ˆλ‹€.
04:55
Okay?
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μ’‹μ•„μš”?
04:56
So these are the basic functions you have to look at.
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이것이 μ—¬λŸ¬λΆ„μ΄ μ‚΄νŽ΄λ΄μ•Ό ν•  κΈ°λ³Έ κΈ°λŠ₯μž…λ‹ˆλ‹€.
04:59
Now we're going to get into a little bit more complicated math things.
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이제 μš°λ¦¬λŠ” 쑰금 더 λ³΅μž‘ν•œ μˆ˜ν•™ λ¬Έμ œμ— λ“€μ–΄κ°ˆ κ²ƒμž…λ‹ˆλ‹€.
05:02
We're going to look at fractions, exponents, we're going to look at some geometry issues,
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μš°λ¦¬λŠ” λΆ„μˆ˜, μ§€μˆ˜, κΈ°ν•˜ν•™ 문제
05:08
things like that.
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등을 μ‚΄νŽ΄λ³Ό κ²ƒμž…λ‹ˆλ‹€.
05:09
Okay, so now we're going to look at something else.
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자, 이제 λ‹€λ₯Έ 것을 μ‚΄νŽ΄λ³΄κ² μŠ΅λ‹ˆλ‹€.
05:11
We're going to look at fractions, exponents, and decimals.
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λΆ„μˆ˜, μ§€μˆ˜, μ†Œμˆ˜λ₯Ό μ‚΄νŽ΄λ³΄κ² μŠ΅λ‹ˆλ‹€.
05:15
Again, all of you know these things even from high school, even before high school, primary
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λ‹€μ‹œ λ§ν•˜μ§€λ§Œ, μ—¬λŸ¬λΆ„ λͺ¨λ‘λŠ” 고등학ꡐ λ•ŒλΆ€ν„° , 심지어 고등학ꡐ 이전에도, μ΄ˆλ“±ν•™κ΅
05:20
school math some of this stuff.
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μˆ˜ν•™μ—μ„œ 이런 것듀을 μ•Œκ³  μžˆμŠ΅λ‹ˆλ‹€.
05:22
A "fraction" is basically a partial number; it's not a whole number.
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"λΆ„μˆ˜"λŠ” 기본적으둜 λΆ€λΆ„ μˆ«μžμž…λ‹ˆλ‹€. μ •μˆ˜κ°€ μ•„λ‹™λ‹ˆλ‹€.
05:27
It's a part of, that's why it's called a fraction.
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그것은 의 일뢀이기 λ•Œλ¬Έμ— λΆ„μˆ˜λΌκ³  ν•©λ‹ˆλ‹€.
05:31
You have two parts to this fraction, you have the "numerator", "nu-mer-a-tor", and then
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이 λΆ„μˆ˜μ—λŠ” 두 뢀뢄이 μžˆμŠ΅λ‹ˆλ‹€. "λΆ„μž", "nu-mer-a-tor", 그리고
05:38
you have the bottom part which is the "denominator", "de-nom-in-at-or".
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μ•„λž˜μͺ½ 뢀뢄인 "λΆ„λͺ¨", "de-nom-in-at-or"κ°€ μžˆμŠ΅λ‹ˆλ‹€. .
05:43
Numerator, denominator.
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λΆ„μž, λΆ„λͺ¨.
05:44
Now, the thing to know about fractions, now, how to add them, how to multiply them, that's
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자, λΆ„μˆ˜μ— λŒ€ν•΄ μ•Œμ•„μ•Ό ν•  것, 자, μ–΄λ–»κ²Œ λ”ν•˜κ³  κ³±ν•˜λŠ”μ§€, 그것은
05:48
a math lesson, we don't need to know that.
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μˆ˜ν•™ μˆ˜μ—…μž…λ‹ˆλ‹€. μš°λ¦¬λŠ” 그것을 μ•Œ ν•„μš”κ°€ μ—†μŠ΅λ‹ˆλ‹€.
05:51
We just need to know the words.
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μš°λ¦¬λŠ” λ‹¨μ–΄λ§Œ μ•Œλ©΄ λ©λ‹ˆλ‹€. λ¬Έμ œκ°€
05:53
What you might have some trouble with is pronunciation.
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될 수 μžˆλŠ” 것은 λ°œμŒμž…λ‹ˆλ‹€.
05:57
So: "5 over 12", we don't say: "5 over 12", we say: "Five twelfths",
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λ”°λΌμ„œ "5 over 12"라고 λ§ν•˜μ§€ μ•Šκ³  "5 over 12"라고 λ§ν•˜μ§€ μ•Šκ³  "Five twelfs",
06:01
"fths", so you have a lot of consonants here.
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"fths"라고 λ§ν•˜λ―€λ‘œ 여기에 자음이 많이 μžˆμŠ΅λ‹ˆλ‹€.
06:05
"Twelfths".
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"열두 번째".
06:07
Now, keep in mind that even native English speakers have a hard time pronouncing this,
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자, μ˜μ–΄ 원어민듀도 발음이 μ–΄λ €μš°λ‹ˆ,
06:12
so if you find it difficult don't worry.
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μ–΄λ €μ›Œλ„ κ±±μ •ν•˜μ§€ λ§ˆμ„Έμš”.
06:15
In context people will understand you.
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λ§₯λ½μ—μ„œ μ‚¬λžŒλ“€μ€ 당신을 이해할 κ²ƒμž…λ‹ˆλ‹€.
06:18
If you say: "Five twelfs", okay, I get it.
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"Five Twelfs"라고 λ§ν•˜λ©΄ μ•Œκ² μŠ΅λ‹ˆλ‹€.
06:21
If you say: "Five twelfth-th-th", I'll get it, I'll know what you're trying to say.
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당신이 "5/12/5"라고 λ§ν•˜λ©΄, 당신이 무슨 말을 ν•˜λ €λŠ”μ§€ μ•Œκ² μŠ΅λ‹ˆλ‹€.
06:25
"Five sixths", this one's even worse, "xths".
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"Five Sixs", 이것은 더 λ‚˜μœ "xths"μž…λ‹ˆλ‹€.
06:29
"Sixths", just say it as close as you can, you'll be understood because people know you're
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"Sixths", μ΅œλŒ€ν•œ κ°€κΉκ²Œ λ§ν•˜μ„Έμš”. μ‚¬λžŒλ“€μ΄ 당신이
06:34
talking about fractions.
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λΆ„μˆ˜μ— λŒ€ν•΄ μ΄μ•ΌκΈ°ν•˜κ³  μžˆλ‹€λŠ” 것을 μ•ŒκΈ° λ•Œλ¬Έμ— 이해할 수 μžˆμ„ κ²ƒμž…λ‹ˆλ‹€.
06:36
Okay?
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μ’‹μ•„μš”?
06:37
On the other side we can say, like, this is a half.
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λ°˜λ©΄μ— μš°λ¦¬λŠ” μ΄λ ‡κ²Œ 말할 수 μžˆμŠ΅λ‹ˆλ‹€. 이것은 μ ˆλ°˜μž…λ‹ˆλ‹€.
06:39
Right?
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였λ₯Έμͺ½?
06:40
1 over 2, so a half.
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1 λ‚˜λˆ„κΈ° 2μ΄λ―€λ‘œ λ°˜μž…λ‹ˆλ‹€.
06:43
We can say it in "decimals" as well.
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"μ‹­μ§„μˆ˜"λ‘œλ„ 말할 수 μžˆμŠ΅λ‹ˆλ‹€.
06:45
"Decimals" are the point form.
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"μ†Œμˆ˜μ "은 점 ν˜•μ‹μž…λ‹ˆλ‹€.
06:47
So, this is "0.5", I hope you can see this point here.
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κ·Έλž˜μ„œ 이것은 "0.5"μž…λ‹ˆλ‹€. μ—¬κΈ°μ„œ 이 점을 λ³Ό 수 있기λ₯Ό λ°”λžλ‹ˆλ‹€.
06:52
We don't say: "Zero decimal five", we don't say: "Zero period five", always "point".
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μš°λ¦¬λŠ” "제둜 μ†Œμˆ˜μ  5"라고 λ§ν•˜μ§€ μ•Šκ³  "제둜 κΈ°κ°„ 5"라고 λ§ν•˜μ§€ μ•Šκ³  항상 "포인트"라고 λ§ν•©λ‹ˆλ‹€.
06:59
Okay? "Zero point five".
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μ’‹μ•„μš”? "제둜 포인트 파이브".
07:01
Now: "Zero point thirty-three", no, because this is not a number, this is a partial number,
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μ§€κΈˆ: "영점 33", μ•„λ‹ˆ, 이것은 μˆ«μžκ°€ μ•„λ‹ˆκΈ° λ•Œλ¬Έμ— 이것은 λΆ„μˆ˜μ™€ 같은 λΆ€λΆ„ μˆ«μžμž…λ‹ˆλ‹€. 1
07:08
just like a fraction, it's less than one so it's not "thirty-three",
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보닀 μž‘μœΌλ―€λ‘œ "33 "이 μ•„λ‹ˆλΌ
07:12
it's "zero point three, three".
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"0.3, 3"μž…λ‹ˆλ‹€. ".
07:14
And as many numbers as you have: "Zero point three, three, seven, eight, nine, ten".
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"0점 3, 3, 7, 8, 9, 10".
07:18
Well, no "ten", "one, zero".
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κΈ€μŽ„, "10", "1, 0"이 μ•„λ‹™λ‹ˆλ‹€.
07:20
Okay? So, and the thing, and you can go as many decimal places as you want.
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μ’‹μ•„μš”? κ·Έλž˜μ„œ, 그리고 μ›ν•˜λŠ” 만큼 μ†Œμˆ˜μ  μ΄ν•˜ μžλ¦Ώμˆ˜κΉŒμ§€ 갈 수 μžˆμŠ΅λ‹ˆλ‹€.
07:26
So this is a whole number, this is the decimal.
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κ·Έλž˜μ„œ 이것은 μ •μˆ˜μ΄κ³  이것은 μ†Œμˆ˜μž…λ‹ˆλ‹€.
07:29
One, two, three, four, five, six decimal places, that's what we talk about after the decimal point.
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1, 2, 3, 4, 5, 6 μ†Œμˆ˜μ  μ΄ν•˜ μžλ¦Ώμˆ˜λŠ” μ†Œμˆ˜μ  μ΄ν•˜μ— λŒ€ν•΄ μ΄μ•ΌκΈ°ν•˜λŠ” κ²ƒμž…λ‹ˆλ‹€.
07:36
Okay?
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μ’‹μ•„μš”?
07:37
Now, this is the 10th or one-tenth, everything that's here.
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자, 이것은 10λΆ„μ˜ 1 λ˜λŠ” 10λΆ„μ˜ 1, 여기에 μžˆλŠ” λͺ¨λ“  κ²ƒμž…λ‹ˆλ‹€.
07:42
So if you have "0.3", you have "three-tenths" of whatever it is you're talking about,
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κ·Έλž˜μ„œ λ§Œμ•½ 당신이 "0.3"을 가지고 μžˆλ‹€λ©΄, 당신이 λ§ν•˜λŠ” 것이 무엇이든 "1/100",
07:48
"one hundredth", "one thousandth", and then we go on from there, but we don't usually talk
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"100λΆ„μ˜ 1", "100λΆ„μ˜ 1", 그리고 μš°λ¦¬λŠ” κ±°κΈ°μ„œλΆ€ν„° κ³„μ†ν•˜μ§€λ§Œ, μš°λ¦¬λŠ” 보톡 λ§ν•˜μ§€ μ•ŠμŠ΅λ‹ˆλ‹€.
07:53
in these terms beyond the third because it gets a little bit too complicated.
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이 μš©μ–΄μ—μ„œ μ„Έ 번째λ₯Ό λ„˜μ–΄μ„œλ©΄ λ„ˆλ¬΄ λ³΅μž‘ν•΄μ§€κΈ° λ•Œλ¬Έμž…λ‹ˆλ‹€.
07:58
Now, three...
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자, μ…‹...
08:00
Where does this number...? First of all: "3/100", so first of all it's here...
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이 μˆ«μžλŠ” 어디에...? μš°μ„ : "3/100", κ·Έλž˜μ„œ μš°μ„  여기에 μžˆμŠ΅λ‹ˆλ‹€...
08:05
Oh, no, it's not, that's thousandths.
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였, μ•„λ‹ˆ, 그렇지 μ•ŠμŠ΅λ‹ˆλ‹€, 그것은 μ²œλΆ„μ˜ μΌμž…λ‹ˆλ‹€.
08:07
It's over here.
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μ—¬κΈ° λλ‚¬μŠ΅λ‹ˆλ‹€.
08:08
Okay? So, "3 hundredths", "3 hundredths".
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μ’‹μ•„μš”? κ·Έλž˜μ„œ "300λΆ„μ˜ 1", "3λΆ„μ˜ 1".
08:12
Now, if you just say: "zz", like in "pizza", "3 hundredths", close enough, then, again,
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이제 "pizza", "3/100"κ³Ό 같이 "zz"라고 λ§ν•˜λ©΄ μΆ©λΆ„νžˆ κ°€κΉŒμ›Œμ§€λ©΄
08:19
people will understand you.
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μ‚¬λžŒλ“€μ΄ 당신을 이해할 κ²ƒμž…λ‹ˆλ‹€.
08:20
When you're talking about sports, for example, and they say there's like point-five seconds
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예λ₯Ό λ“€μ–΄, μŠ€ν¬μΈ μ— λŒ€ν•΄ 이야기할 λ•Œ, 그듀은 μ‹œκ³„μ— 5초 정도 λ‚¨μ•˜λ‹€κ³  λ§ν•©λ‹ˆλ‹€.
08:25
left on the clock, so he...
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08:27
The guy, basketball, he shoots it, he scores with a tenth of a second left in the game.
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κ²Œμž„.
08:32
So you understand?
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κ·Έλž˜μ„œ 당신은 μ΄ν•΄ν•©λ‹ˆκΉŒ?
08:33
They're talking about 0.1 second.
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그듀은 0.1μ΄ˆμ— λŒ€ν•΄ μ΄μ•ΌκΈ°ν•˜κ³  μžˆμŠ΅λ‹ˆλ‹€.
08:36
Okay.
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μ’‹μ•„μš”.
08:37
Next we have "exponents".
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λ‹€μŒμœΌλ‘œ "μ§€μˆ˜"κ°€ μžˆμŠ΅λ‹ˆλ‹€.
08:39
X with a small "2" or a small "3" or whatever number.
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μž‘μ€ "2" λ˜λŠ” μž‘μ€ "3" λ˜λŠ” μˆ«μžκ°€ μžˆλŠ” X.
08:43
So this whole thing is called...
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κ·Έλž˜μ„œ 이 λͺ¨λ“  것은...
08:44
The "2" is actually called the exponent, the x or whatever number is called the base, and
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"2"λŠ” μ‹€μ œλ‘œ μ§€μˆ˜λΌκ³  ν•˜κ³ , x λ˜λŠ” μ–΄λ–€ μˆ«μžλ“  밑이라고 ν•©λ‹ˆλ‹€. 그리고
08:51
we can also refer to this as "the power".
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μš°λ¦¬λŠ” 이것을 "제곱"이라고 λΆ€λ₯Ό μˆ˜λ„ μžˆμŠ΅λ‹ˆλ‹€.
08:53
So, the whole thing is the "exponent", "base", and "power".
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κ·Έλž˜μ„œ λͺ¨λ“  것은 "μ§€μˆ˜", "λ°‘", "제곱"μž…λ‹ˆλ‹€.
08:57
Now, when we talk about: "X to the power of 2", we don't say: "to the power of 2".
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이제 "X의 2제곱"에 λŒ€ν•΄ 이야기할 λ•Œ "2의 κ±°λ“­μ œκ³±"이라고 λ§ν•˜μ§€ μ•ŠμŠ΅λ‹ˆλ‹€.
09:03
When the number is 2, we say: "squared", so: "X squared".
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μˆ«μžκ°€ 2이면 "squared"라고 λ§ν•˜λ―€λ‘œ "X squared"μž…λ‹ˆλ‹€.
09:07
When we talk about "3", we say: "cubed".
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"3"에 λŒ€ν•΄ 이야기할 λ•Œ "cubed"라고 λ§ν•©λ‹ˆλ‹€.
09:11
Okay?
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μ’‹μ•„μš”?
09:12
So we're going to look in a second, and we're going to look at measuring area of a shape
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μž μ‹œ 후에 λͺ¨μ–‘μ˜ 면적 μΈ‘μ •
09:16
or measuring the volume of a shape.
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μ΄λ‚˜ λͺ¨μ–‘μ˜ λΆ€ν”Ό 츑정에 λŒ€ν•΄ μ‚΄νŽ΄λ³΄κ² μŠ΅λ‹ˆλ‹€.
09:18
Different shapes, of course, but "area" is measured with "x2" or whatever the measurement
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λ¬Όλ‘  λͺ¨μ–‘은 λ‹€λ₯΄μ§€λ§Œ "면적"은 "x2" λ˜λŠ” μΈ‘μ • κ°’μ˜
09:24
is squared, and the volume is measured with "cubed".
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제곱으둜 μΈ‘μ •λ˜κ³  λΆ€ν”ΌλŠ” "cubed"둜 μΈ‘μ •λ©λ‹ˆλ‹€.
09:28
Okay?
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μ’‹μ•„μš”?
09:29
Now, once you get past the third-four, five, six-there's two ways you can say it, you can say:
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이제 3, 4, 5, 6을 μ§€λ‚˜λ©΄
09:33
"X to the 4th power", if this is a "4": "X to the 4th power",
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"X의 4제곱"이라고 말할 수 μžˆμŠ΅λ‹ˆλ‹€. 이것이 "4"라면 "X의 4제곱"이라고 말할 수 μžˆμŠ΅λ‹ˆλ‹€. ,
09:40
or "X to the power of 4".
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λ˜λŠ” "X의 4제곱".
09:43
Now, sometimes you might see...
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자, 가끔 μ—¬λŸ¬λΆ„μ€...
09:46
You might hear this expression: "The nth power".
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"n번째 κ±°λ“­μ œκ³±"μ΄λΌλŠ” ν‘œν˜„μ„ 듀을 수 μžˆμŠ΅λ‹ˆλ‹€.
09:51
"The nth power" means unlimited, it goes on forever, or infinite, we don't know where
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"n번째 κ±°λ“­μ œκ³±"은 λ¬΄ν•œν•˜λ‹€, μ˜μ›νžˆ κ³„μ†λœλ‹€, λ˜λŠ” λ¬΄ν•œν•˜λ‹€, μ–΄λ””μ—μ„œ
09:55
it ends but this is actually an expression used in regular English as well, and we'll
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λλ‚˜λŠ”μ§€ λͺ¨λ₯΄μ§€λ§Œ 이것은 μ‹€μ œλ‘œ 일반 μ˜μ–΄μ—μ„œλ„ μ‚¬μš©λ˜λŠ” ν‘œν˜„μž…λ‹ˆλ‹€.
10:00
talk about that another time.
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이에 λŒ€ν•΄μ„œλŠ” λ‹€μŒμ— μ΄μ•ΌκΈ°ν•˜κ² μŠ΅λ‹ˆλ‹€.
10:02
Now, if you're going the opposite direction, instead of squaring the number you want to
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이제 λ°˜λŒ€ λ°©ν–₯으둜 κ°€λ €λ©΄ 숫자λ₯Ό μ œκ³±ν•˜λŠ” λŒ€μ‹ 
10:07
find the "root" of the number.
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숫자의 "κ·Ό"을 μ°ΎμœΌμ‹­μ‹œμ˜€.
10:10
So, 3 squared equals 9.
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κ·Έλž˜μ„œ, 3의 μ œκ³±μ€ 9μž…λ‹ˆλ‹€.
10:14
Okay?
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μ•Œμ•˜μ£ ?
10:15
The square root of 9 is 3.
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9의 μ œκ³±κ·Όμ€ 3μž…λ‹ˆλ‹€.
10:18
How many times does 3 go into 9?
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3은 9에 λͺ‡ 번 λ“€μ–΄κ°€λ‚˜μš”?
10:21
3 times, etc.
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3 번 λ“±
10:23
"Square root", finding out how many times the number goes into itself.
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"제곱근", μˆ«μžκ°€ λͺ‡ 번 λ“€μ–΄κ°€λŠ”μ§€ μ•Œμ•„λƒ…λ‹ˆλ‹€.
10:28
X2, multiplying the number by itself two times.
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X2, 숫자 자체λ₯Ό 두 번 κ³±ν•©λ‹ˆλ‹€.
10:32
Okay.
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μ’‹μ•„μš”.
10:33
So far so good, but we're not done yet.
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μ§€κΈˆκΉŒμ§€λŠ” μ’‹μ•˜μ§€λ§Œ 아직 λλ‚˜μ§€ μ•Šμ•˜μŠ΅λ‹ˆλ‹€.
10:35
We still have to look at shapes and what to do with them, and angles.
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μš°λ¦¬λŠ” μ—¬μ „νžˆ λͺ¨μ–‘κ³Ό κ·Έκ²ƒμœΌλ‘œ 무엇을 ν•  것인지, 그리고 각도λ₯Ό μ‚΄νŽ΄λ΄μ•Ό ν•©λ‹ˆλ‹€.
10:39
A lot more interesting stuff coming up. One sec.
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훨씬 더 ν₯미둜운 것듀이 λ‚˜μ˜΅λ‹ˆλ‹€. 1초.
10:42
Okay, so actually we're going to look at a couple more symbols and words before we go
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μ’‹μ•„μš”, κ·Έλž˜μ„œ 사싀 μš°λ¦¬λŠ” 더 λ³΅μž‘ν•œ λ‹€λ₯Έ κ²ƒλ“€λ‘œ λ„˜μ–΄κ°€κΈ° 전에 λͺ‡ 가지 κΈ°ν˜Έμ™€ 단어λ₯Ό 더 μ‚΄νŽ΄λ³Ό κ²ƒμž…λ‹ˆλ‹€
10:46
on to other more complicated things.
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.
10:48
I wanted to just squeeze these in because they're a little bit simple, but still need
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λ‚˜λŠ” 그것듀이 μ•½κ°„ λ‹¨μˆœν•˜μ§€λ§Œ μ—¬μ „νžˆ
10:52
to understand them.
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그것듀을 이해할 ν•„μš”κ°€ 있기 λ•Œλ¬Έμ— 그것듀을 μ§œλ‚΄κ³  μ‹Άμ—ˆμŠ΅λ‹ˆλ‹€.
10:53
"Average" and "mean", now, "average" and "mean" are synonyms, they essentially mean the same thing.
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"평균"κ³Ό "평균", 이제 "평균"κ³Ό "평균"은 λ™μ˜μ–΄μ΄λ©° 본질적으둜 같은 것을 μ˜λ―Έν•©λ‹ˆλ‹€.
10:59
We use "mean" more with math.
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μš°λ¦¬λŠ” μˆ˜ν•™μ—μ„œ "평균"을 더 많이 μ‚¬μš©ν•©λ‹ˆλ‹€.
11:01
We use "average" more with other things, like everyday things as well.
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μš°λ¦¬λŠ” 일상적인 것과 같은 λ‹€λ₯Έ 것듀에 λŒ€ν•΄ "보톡"을 더 많이 μ‚¬μš©ν•©λ‹ˆλ‹€ .
11:05
But they mean the same thing.
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κ·ΈλŸ¬λ‚˜ 그듀은 같은 것을 μ˜λ―Έν•©λ‹ˆλ‹€.
11:07
So when you're looking for the average or the mean, you're taking all the values...
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κ·Έλž˜μ„œ ν‰κ· μ΄λ‚˜ 평균을 찾을 λ•Œ λͺ¨λ“  값을 μ·¨ν•˜λŠ” κ²ƒμž…λ‹ˆλ‹€...
11:11
So in this case we have one, two, three, four values, you add them up, you take the total
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λ”°λΌμ„œ 이 κ²½μš°μ—λŠ” 1, 2, 3, 4개의 값이 μžˆμŠ΅λ‹ˆλ‹€. 값을 λ”ν•˜κ³  합계λ₯Ό μ·¨ν•œ
11:17
and then divide it by the number of values you started with.
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λ‹€μŒ λ‚˜λˆ•λ‹ˆλ‹€. μ‹œμž‘ν•œ κ°’μ˜ μˆ˜λ§ŒνΌμž…λ‹ˆλ‹€ .
11:20
So the...
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κ·Έλž˜μ„œ...
11:21
We have four values, the total 20 divided by 4, and the average of these values is 5.
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총 20을 4둜 λ‚˜λˆˆ 4개의 값이 있고 이 κ°’μ˜ 평균은 5μž…λ‹ˆλ‹€.
11:28
Okay?
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11:28
So that's "average" or "mean".
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μ•Œκ² μŠ΅λ‹ˆλ‹€.
κ·Έλž˜μ„œ 그것은 "평균"λ˜λŠ” "평균"μž…λ‹ˆλ‹€.
11:30
Now, on the other hand, you want to sometimes look for the "median".
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λ°˜λ©΄μ— λ•Œλ•Œλ‘œ "쀑앙값"을 μ°Ύκ³  싢을 λ•Œκ°€ μžˆμŠ΅λ‹ˆλ‹€.
11:34
Now, some...
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자, 일뢀...
11:35
In some situations you don't want the mean or the average because the extremes, the top
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μ–΄λ–€ μƒν™©μ—μ„œλŠ” 평균 μ΄λ‚˜ 평균을 μ›ν•˜μ§€ μ•ŠμŠ΅λ‹ˆλ‹€. 극단, 상단
11:41
or the bottom are so far apart that the average will not give you a right idea of what's going
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λ˜λŠ” ν•˜λ‹¨μ΄ λ„ˆλ¬΄ 멀리 λ–¨μ–΄μ Έ 있기 λ•Œλ¬Έμ— 평균이 μ–΄λ–€ κ°’μœΌλ‘œ μ§„ν–‰λ˜κ³  μžˆλŠ”μ§€μ— λŒ€ν•œ μ˜¬λ°”λ₯Έ 아이디어λ₯Ό μ œκ³΅ν•˜μ§€ μ•ŠκΈ° λ•Œλ¬Έμž…λ‹ˆλ‹€.
11:49
on with whatever values you're looking at, so what you want is the "median".
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κ·Έλž˜μ„œ 당신이 μ›ν•˜λŠ” 것은 "쀑간값"μž…λ‹ˆλ‹€.
11:54
The "median" is more like the middle number that has an equal number of values above it
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"쀑간값"은 μœ„μ™€ 같은 수의 κ°’
11:58
and an equal number of values below it.
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κ³Ό μ•„λž˜μ— λ™μΌν•œ 수의 값이 μžˆλŠ” κ°€μš΄λ° μˆ«μžμ™€ λΉ„μŠ·ν•©λ‹ˆλ‹€.
12:00
So that's a little bit more representative of the situation you're looking at.
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이것이 μ—¬λŸ¬λΆ„μ΄ 보고 μžˆλŠ” 상황을 쑰금 더 λŒ€ν‘œν•˜λŠ” κ²ƒμž…λ‹ˆλ‹€.
12:06
Okay, so now we're going to look at these symbols.
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μ’‹μ•„μš”, 이제 μš°λ¦¬λŠ” 이 κΈ°ν˜Έλ“€μ„ λ³Ό κ²ƒμž…λ‹ˆλ‹€.
12:08
We got this one, this one, this one, and this one - four of them.
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μš°λ¦¬λŠ” 이것 ν•˜λ‚˜, 이것 ν•˜λ‚˜, 이것 ν•˜λ‚˜, 그리고 이것 ν•˜λ‚˜ - 그것듀 쀑 4개λ₯Ό μ–»μ—ˆμŠ΅λ‹ˆλ‹€.
12:12
Now, this one, when you have the bigger size open and then it goes to the smaller size
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자, 이것은 더 큰 크기가 μ—΄λ¦° λ‹€μŒ 더 μž‘μ€ 크기둜 갈 λ•Œ
12:17
means y is larger than x.
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yκ°€ x보닀 ν¬λ‹€λŠ” 것을 μ˜λ―Έν•©λ‹ˆλ‹€.
12:21
Larger, smaller, right?
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더 크게, 더 μž‘κ²Œ, 맞죠?
12:22
So, y is larger than x, y is greater than x, y is more than x.
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λ”°λΌμ„œ yλŠ” x보닀 크고, yλŠ” x보닀 크고, yλŠ” x보닀 ν½λ‹ˆλ‹€. λ‹€μ‹œ 비ꡐ급이 있기
12:27
Don't forget the "than" because, again, you have a comparative here.
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λ•Œλ¬Έμ— "보닀"λ₯Ό μžŠμ§€ λ§ˆμ„Έμš” .
12:31
And if you turn it around, y is smaller than, y is less than x.
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그리고 뒀집어 보면 yλŠ” 보닀 μž‘κ³  yλŠ” x보닀 μž‘μŠ΅λ‹ˆλ‹€.
12:37
Now, sometimes you might see these symbols with a line underneath, in which case:
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이제 μ•„λž˜μ— 선이 μžˆλŠ” μ΄λŸ¬ν•œ 기호λ₯Ό λ³Ό 수 μžˆμŠ΅λ‹ˆλ‹€ . 이 경우
12:44
y is greater than or equal to x. Okay?
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yλŠ” x보닀 ν¬κ±°λ‚˜ κ°™μŠ΅λ‹ˆλ‹€. μ’‹μ•„μš”?
12:53
Y is greater than or equal to x, y is less than or equal to...
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YλŠ” x보닀 ν¬κ±°λ‚˜ κ°™κ³ , yλŠ” μž‘κ±°λ‚˜ κ°™μŠ΅λ‹ˆλ‹€...
13:00
Sorry, y is greater...
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μ£„μ†‘ν•©λ‹ˆλ‹€. yλŠ” 더 ν½λ‹ˆλ‹€...
13:02
Less than or equal to x.
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x보닀 μž‘κ±°λ‚˜ κ°™μŠ΅λ‹ˆλ‹€.
13:04
And now, this one you have...
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그리고 이제 이것은...
13:05
Basically you have the equal sign, but then you have a squiggly line.
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기본적으둜 λ“±ν˜Έκ°€ μžˆμ§€λ§Œ κ΅¬λΆˆκ΅¬λΆˆν•œ 선이 μžˆμŠ΅λ‹ˆλ‹€.
13:08
This means it's approximately equal to, so it's an approximation, not exactly equal.
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이것은 λŒ€λž΅ κ°™λ‹€λŠ” 것을 μ˜λ―Έν•˜λ―€λ‘œ μ •ν™•νžˆ κ°™μ§€λŠ” μ•Šκ³  κ·Όμ‚¬μΉ˜μž…λ‹ˆλ‹€.
13:14
And then you have the equal sign with a strike through, and in this case it's just not equal.
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그리고 μ·¨μ†Œμ„ μ΄ μžˆλŠ” λ“±ν˜Έκ°€ μžˆμŠ΅λ‹ˆλ‹€ . 이 κ²½μš°μ—λŠ” 같지 μ•ŠμŠ΅λ‹ˆλ‹€.
13:19
Okay, pretty straightforward stuff.
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μ’‹μ•„, μ•„μ£Ό κ°„λ‹¨ν•œ 것듀. μ’€ 더 λ³΅μž‘ν•œ
13:21
Let's move on to some other more complicated things.
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λ‹€λ₯Έ κ²ƒλ“€λ‘œ λ„˜μ–΄ κ°‘μ‹œλ‹€ .
13:25
Okay, let's look at some more math stuff.
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μ’‹μ•„, μ’€ 더 μˆ˜ν•™μ μΈ 것을 보자.
13:27
We're going to look at shapes.
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μš°λ¦¬λŠ” λͺ¨μ–‘을 λ³Ό κ²ƒμž…λ‹ˆλ‹€.
13:29
Okay?
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μ’‹μ•„μš”?
13:30
So, first of all we're going to start with our "rectangle", means the two sides...
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κ·Έλž˜μ„œ, μš°μ„  μš°λ¦¬λŠ” "μ§μ‚¬κ°ν˜•"으둜 μ‹œμž‘ν•  κ²ƒμž…λ‹ˆλ‹€. 두 변을 μ˜λ―Έν•©λ‹ˆλ‹€... λ„€ λ³€μ˜
13:34
All four sides are not the same length.
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κΈΈμ΄λŠ” λͺ¨λ‘ 같지 μ•ŠμŠ΅λ‹ˆλ‹€.
13:37
You have the "width", you have the "length".
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"λ„ˆλΉ„"κ°€ 있고 "길이"κ°€ μžˆμŠ΅λ‹ˆλ‹€.
13:39
Okay?
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μ’‹μ•„μš”?
13:40
Now, when you add a "height" or a "depth", both okay, depending on what you're looking at, then you...
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이제 "높이" λ˜λŠ” "깊이"λ₯Ό μΆ”κ°€ν•˜λ©΄ 보고 μžˆλŠ” λŒ€μƒμ— 따라 λ‘˜ λ‹€ μ’‹μŠ΅λ‹ˆλ‹€. 그러면...
13:45
First of all, you've created a box.
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μš°μ„  μƒμžλ₯Ό λ§Œλ“€μ—ˆμŠ΅λ‹ˆλ‹€.
13:47
So, a rectangle is two-dimensional, a box is three-dimensional.
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λ”°λΌμ„œ μ‚¬κ°ν˜•μ€ 2차원이고 μƒμžλŠ” 3μ°¨μ›μž…λ‹ˆλ‹€.
13:52
Width, length, height or depth, both okay.
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λ„ˆλΉ„, 길이, 높이 λ˜λŠ” 깊이, λ‘˜ λ‹€ μ’‹μŠ΅λ‹ˆλ‹€.
13:55
Now, when you measure these, when you measure...
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자, 이것듀을 μΈ‘μ •ν•  λ•Œ, μΈ‘μ •ν•  λ•Œ...
13:58
Like, basically you want to measure the inside space, then you're measuring the area.
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예λ₯Ό λ“€μ–΄, 기본적으둜 λ‚΄λΆ€ 곡간을 μΈ‘μ •ν•˜κ³  μ‹Άλ‹€λ©΄ 면적을 μΈ‘μ •ν•˜λŠ” κ²ƒμž…λ‹ˆλ‹€.
14:04
So you do length times width, and then the answer is whatever the number is.
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λ”°λΌμ„œ 길이 κ³±ν•˜κΈ° λ„ˆλΉ„λ₯Ό κ³„μ‚°ν•˜λ©΄ 닡은 μˆ«μžκ°€ 무엇이든 λ©λ‹ˆλ‹€.
14:08
So let's say you have two feet by four feet, so you have eight, and then the measure...
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2ν”ΌνŠΈ x 4ν”ΌνŠΈκ°€ 있고 8κ°œκ°€ μžˆλ‹€κ³  κ°€μ •ν•΄ λ΄…μ‹œλ‹€. μΈ‘μ • λ‹¨μœ„λŠ”...
14:12
If you're measuring in metres, in feet, in inches, in kilometres, whatever, and then
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λ―Έν„° λ‹¨μœ„, ν”ΌνŠΈ λ‹¨μœ„, 인치 λ‹¨μœ„, ν‚¬λ‘œλ―Έν„° λ‹¨μœ„ λ“± 무엇이든 μž°λ‹€λ©΄
14:18
you have the square.
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제곱이 λ©λ‹ˆλ‹€.
14:19
So, whatever 20 metres square, 20 square metres, etc.
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λ”°λΌμ„œ 20μ œκ³±λ―Έν„°, 20μ œκ³±λ―Έν„° 등이 무엇이든
14:25
With...
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...
14:26
When you add the third dimension now you're measuring volume and you're using the 3, the
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3차원을 λ”ν•˜λ©΄ 이제 λΆ€ν”Όλ₯Ό μΈ‘μ •ν•˜κ³  μ§€μˆ˜ 2
14:31
exponent 3 instead of the exponent 2.
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λŒ€μ‹  μ§€μˆ˜ 3인 3을 μ‚¬μš©ν•˜κ²Œ λ©λ‹ˆλ‹€.
14:33
Okay?
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μ•Œμ•˜μ£ ?
14:34
Now, other shapes.
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이제 λ‹€λ₯Έ λͺ¨μ–‘μž…λ‹ˆλ‹€.
14:35
We have a "square", all four sides are equal.
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μš°λ¦¬λŠ” "μ •μ‚¬κ°ν˜•"을 가지고 있으며 넀면이 λͺ¨λ‘ λ™μΌν•©λ‹ˆλ‹€.
14:38
When you put in the extra measure, the extra side, then you have a depth to it,
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μΆ”κ°€ μΈ‘μ •, μΆ”κ°€ 면을 λ„£μœΌλ©΄ κΉŠμ΄κ°€ 있고
14:43
then you have a "cube". Okay? So...
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"큐브"κ°€ μžˆμŠ΅λ‹ˆλ‹€. μ’‹μ•„μš”? κ·Έλž˜μ„œ...
14:47
And, again, another way to think about this: This is two-dimensional, that's why it's squared;
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그리고 λ‹€μ‹œ, 이것에 λŒ€ν•΄ μƒκ°ν•˜λŠ” 또 λ‹€λ₯Έ λ°©λ²•μž…λ‹ˆλ‹€. 이것은 2μ°¨μ›μž…λ‹ˆλ‹€. κ·Έλž˜μ„œ μ œκ³±μž…λ‹ˆλ‹€.
14:53
this is three-dimensional, cubed.
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이것은 3차원, μ •μœ‘λ©΄μ²΄μž…λ‹ˆλ‹€.
14:55
Okay.
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μ’‹μ•„μš”.
14:56
A "circle" or a "sphere".
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"원" λ˜λŠ” "ꡬ".
14:58
Now, I can't draw a sphere because I'm not a very good artist, like if I do like this...
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μ§€κΈˆμ€ ꡬλ₯Ό 그릴 수 μ—†μŠ΅λ‹ˆλ‹€. μ œκ°€ 그리 λ›°μ–΄λ‚œ ν™”κ°€κ°€ μ•„λ‹ˆκΈ° λ•Œλ¬Έμ— μ΄λ ‡κ²Œ ν•˜λ©΄... μ•Œλ‹€μ‹œν”Ό
15:02
You know, like a moon, like a ball is a sphere.
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, λ‹¬μ²˜λŸΌ, 곡처럼 κ΅¬μž…λ‹ˆλ‹€.
15:05
The flat shape is the circle.
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ν‰ν‰ν•œ λͺ¨μ–‘은 μ›μž…λ‹ˆλ‹€. μ›μ˜
15:08
If you want to measure the outside of the circle then you're looking...
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μ™ΈλΆ€λ₯Ό μΈ‘μ •ν•˜λ €λŠ” 경우 μ°Ύκ³  μžˆλŠ” 것은 ...
15:11
You're trying to measure the "circumference".
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"원주"λ₯Ό μΈ‘μ •ν•˜λ €λŠ” κ²ƒμž…λ‹ˆλ‹€.
15:14
Sorry, I forgot to mention, if you want to measure the outside area of the rectangle,
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μ£„μ†‘ν•©λ‹ˆλ‹€. μ–ΈκΈ‰ν•˜λŠ” 것을 μžŠμ—ˆμŠ΅λ‹ˆλ‹€. μ§μ‚¬κ°ν˜•μ˜ μ™ΈλΆ€ μ˜μ—­μ„ μΈ‘μ •ν•˜λ €λŠ” 경우
15:20
you're measuring the "perimeter", same for square.
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μ •μ‚¬κ°ν˜•κ³Ό λ§ˆμ°¬κ°€μ§€λ‘œ "λ‘˜λ ˆ"λ₯Ό μΈ‘μ •ν•©λ‹ˆλ‹€.
15:23
For a circle you're measuring the circumference.
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μ›μ˜ 경우 λ‘˜λ ˆλ₯Ό μΈ‘μ •ν•©λ‹ˆλ‹€.
15:27
If you want to measure the volume of a sphere then you're starting to get into things like
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ꡬ의 λΆ€ν”Όλ₯Ό μΈ‘μ •ν•˜λ €λŠ” 경우 "λ°˜μ§€λ¦„"κ³Ό 같은 ν•­λͺ©μ— λ„λ‹¬ν•˜κΈ° μ‹œμž‘ν•˜λ―€λ‘œ
15:32
"radius", so our radius is from the centre to one side, that's half the distance from
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λ°˜μ§€λ¦„μ€ μ€‘μ‹¬μ—μ„œ ν•œμͺ½μœΌλ‘œ, 쒌우둜 거리의 μ ˆλ°˜μž…λ‹ˆλ‹€
15:40
side to side.
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.
15:42
If you want to go the full distance, then you have the "diameter".
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전체 거리λ₯Ό κ°€κ³  μ‹Άλ‹€λ©΄ "직경"이 μžˆμŠ΅λ‹ˆλ‹€.
15:48
"Radius", "diameter", full length, basically cutting it in half, equal points.
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"λ°˜μ§€λ¦„", "직경", 전체 길이, 기본적으둜 반으둜 자λ₯΄κ³ , 같은 지점.
15:56
So that's the circle.
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이것이 μ›μž…λ‹ˆλ‹€.
15:58
Then you start...
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그런 λ‹€μŒ μ‹œμž‘ν•©λ‹ˆλ‹€...
15:59
If you want to get into the actual measurements then you start having to look at "pi".
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μ‹€μ œ 츑정을 μ‹œμž‘ν•˜λ €λ©΄ "파이"λ₯Ό μ‚΄νŽ΄λ΄μ•Ό ν•©λ‹ˆλ‹€.
16:03
Okay? Just that's how it's spelled, "pi", from the...
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μ’‹μ•„μš”? 그게 "pi"둜 μ² μžκ°€ 된 λ°©μ‹μž…λ‹ˆλ‹€.
16:06
I think Greek, if I'm not mistaken, the letter.
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μ œκ°€ 잘λͺ» μƒκ°ν•œ 것이 μ•„λ‹ˆλΌλ©΄ 그리슀 문자인 것 κ°™μŠ΅λ‹ˆλ‹€.
16:09
Now, we're getting into "triangles".
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이제 μš°λ¦¬λŠ” "μ‚Όκ°ν˜•"에 λ“€μ–΄κ°€κ³  μžˆμŠ΅λ‹ˆλ‹€. μž μ‹œ
16:11
We're going to look at triangles again in a minute, but for now the two-dimensional
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후에 μ‚Όκ°ν˜•μ„ λ‹€μ‹œ μ‚΄νŽ΄λ³΄κ² μ§€λ§Œ μ§€κΈˆμ€ 2차원
16:15
triangle.
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μ‚Όκ°ν˜•μž…λ‹ˆλ‹€.
16:16
Now, three-dimensional you can have a "pyramid", you can have the base and then you have the
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자, 3차원은 "ν”ΌλΌλ―Έλ“œ"λ₯Ό κ°€μ§ˆ 수 있고, 밑면을 κ°€μ§ˆ 수 있으며, 그런 λ‹€μŒ
16:20
sides coming up to an apex.
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츑면이 정점에 도달할 수 μžˆμŠ΅λ‹ˆλ‹€.
16:23
"Apex" means top point of something, or you can have a "prism" where you have the extra
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"Apex"λŠ” λ¬΄μ–Έκ°€μ˜ 상단을 μ˜λ―Έν•˜κ±°λ‚˜ 이μͺ½μ— μ—¬λΆ„μ˜ 면이 μžˆλŠ” "ν”„λ¦¬μ¦˜"을 κ°€μ§ˆ 수 μžˆμŠ΅λ‹ˆλ‹€
16:28
side on this side.
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.
16:30
Okay? So, triangle, pyramid, prism.
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μ’‹μ•„μš”? κ·Έλž˜μ„œ μ‚Όκ°ν˜•, ν”ΌλΌλ―Έλ“œ, ν”„λ¦¬μ¦˜.
16:33
But then we have other shapes like "oval", this is like a "cone", like an ice cream cone.
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κ·ΈλŸ¬λ‚˜ μš°λ¦¬λŠ” "νƒ€μ›ν˜•"κ³Ό 같은 λ‹€λ₯Έ λͺ¨μ–‘을 가지고 μžˆμŠ΅λ‹ˆλ‹€. 이것은 μ•„μ΄μŠ€ν¬λ¦Ό 콘과 같은 "원뿔"κ³Ό κ°™μŠ΅λ‹ˆλ‹€.
16:38
And there's a bunch of other shapes, there's a "rhombus", there's a "diamond", there's
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그리고 " λ§ˆλ¦„λͺ¨", "닀이아λͺ¬λ“œ", "
16:41
a "hectagon", there's an "octagon", all kinds of shapes.
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μœ‘κ°ν˜•", "νŒ”κ°ν˜•" λ“± λ‹€μ–‘ν•œ λͺ¨μ–‘이 μžˆμŠ΅λ‹ˆλ‹€.
16:45
If you're not sure, basically you can punch in the word you want...
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ν™•μ‹€ν•˜μ§€ μ•Šμ€ 경우 기본적으둜 μ›ν•˜λŠ” 단어λ₯Ό μž…λ ₯ν•  수 μžˆμŠ΅λ‹ˆλ‹€...
16:50
Just get a math book or Google "shapes", and you'll see all the different shapes that are
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μˆ˜ν•™ μ±…μ΄λ‚˜ Google "λ„ν˜•"을 κ΅¬ν•˜λ©΄ μ‚¬μš©ν•  수 μžˆλŠ” 2차원 및 2차원 λ„ν˜•μ„ λͺ¨λ‘ λ³Ό 수 μžˆμŠ΅λ‹ˆλ‹€.
16:55
available to you, both two-dimensional and three-dimensional. Okay?
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μž…μ²΄. μ’‹μ•„μš”?
17:00
There's too many of them to list here.
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여기에 λ‚˜μ—΄ν•˜κΈ°μ—λŠ” λ„ˆλ¬΄ λ§ŽμŠ΅λ‹ˆλ‹€.
17:02
These are the basics, we're going to work with these.
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이것이 κΈ°λ³Έμž…λ‹ˆλ‹€. μš°λ¦¬λŠ” μ΄κ²ƒμœΌλ‘œ μž‘μ—…ν•  κ²ƒμž…λ‹ˆλ‹€.
17:05
We're not done yet, though.
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ν•˜μ§€λ§Œ 아직 λλ‚˜μ§€ μ•Šμ•˜μŠ΅λ‹ˆλ‹€.
17:07
There's still some more math stuff to come.
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아직 더 λ§Žμ€ μˆ˜ν•™ λ¬Έμ œκ°€ μžˆμŠ΅λ‹ˆλ‹€.
17:09
We're going to look at the different types of triangles and the different angles that
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μš°λ¦¬λŠ” λ‹€μ–‘ν•œ μœ ν˜• 의 μ‚Όκ°ν˜•κ³Ό
17:13
each of them will have. Okay?
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각 μ‚Όκ°ν˜•μ΄ κ°€μ§ˆ λ‹€λ₯Έ 각도λ₯Ό μ‚΄νŽ΄λ³Ό κ²ƒμž…λ‹ˆλ‹€. μ’‹μ•„μš”?
17:16
Okay, almost done, don't worry.
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μ’‹μ•„μš”, 거의 λλ‚¬μ–΄μš”. κ±±μ • λ§ˆμ„Έμš”.
17:19
I know you're loving this math stuff, but we're almost done.
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λ‚˜λŠ” 당신이 이 μˆ˜ν•™μ„ μ’‹μ•„ν•œλ‹€λŠ” 것을 μ•Œκ³  μžˆμ§€λ§Œ , μš°λ¦¬λŠ” 거의 λλ‚¬μŠ΅λ‹ˆλ‹€.
17:22
We're going to look at some triangles and some angles next.
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λ‹€μŒμ—λŠ” μ‚Όκ°ν˜•κ³Ό 각을 μ‚΄νŽ΄λ³΄κ² μŠ΅λ‹ˆλ‹€.
17:25
Okay?
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μ’‹μ•„μš”?
17:26
So there are different types of triangles.
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λ”°λΌμ„œ λ‹€μ–‘ν•œ μœ ν˜•μ˜ μ‚Όκ°ν˜•μ΄ μžˆμŠ΅λ‹ˆλ‹€.
17:30
"Isosceles", "isosceles triangle" has two equal sides and one...
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"이등변", "μ΄λ“±λ³€μ‚Όκ°ν˜•"은 두 λ³€μ˜ 길이가 κ°™κ³  ν•˜λ‚˜λŠ”...
17:36
Two equal length sides, and one that's different, and "equilateral" has all three sides equal length.
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두 λ³€μ˜ 길이가 κ°™κ³  λ‹€λ₯Έ λ³€μ˜ 길이가 λ‹€λ₯΄κ³  "λ“±λ³€"은 μ„Έ λ³€μ˜ 길이가 λͺ¨λ‘ κ°™μŠ΅λ‹ˆλ‹€.
17:43
By the way, just so you know, "lateral" means side, "equi" is equal or even, so "equilateral".
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그건 κ·Έλ ‡κ³ , "lateral"은 츑면을 μ˜λ―Έν•˜κ³  "equi"λŠ” κ°™κ±°λ‚˜ μ§μˆ˜μ΄λ―€λ‘œ "equilateral"μž…λ‹ˆλ‹€.
17:50
So, equilateral, all three sides are even.
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λ”°λΌμ„œ 등변은 μ„Έ 변이 λͺ¨λ‘ μ§μˆ˜μž…λ‹ˆλ‹€.
17:53
And then when you have all three sides different length, we call this a "scalene", "scalene" triangle.
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그런 λ‹€μŒ μ„Έ λ³€μ˜ 길이가 λͺ¨λ‘ λ‹€λ₯Έ 경우 이λ₯Ό "scalene", "scalene" μ‚Όκ°ν˜•μ΄λΌκ³  ν•©λ‹ˆλ‹€.
18:01
Now, the...
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이제, κ·Έ... 예λ₯Ό λ“€μ–΄
18:02
For example, the isosceles or the scalene, or really any much either of these two can
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, μ΄λ“±λ³€μ΄λ‚˜ λΆ€λ“±λ³€, λ˜λŠ” μ‹€μ œλ‘œ 이 λ‘˜ 쀑 μ–΄λŠ 것이든
18:07
also be a "right angle triangle".
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" 직각 μ‚Όκ°ν˜•"이 될 수 μžˆμŠ΅λ‹ˆλ‹€. μ—¬κΈ°μ„œ
18:13
A "right angle" is this square here, it means 90 degrees.
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"직각"은 이 μ •μ‚¬κ°ν˜•μ΄κ³  90도λ₯Ό μ˜λ―Έν•©λ‹ˆλ‹€.
18:18
When you have a 90 degree angle and you want to measure its area, you have to use this
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각도가 90도이고 면적을 μΈ‘μ •ν•˜λ €λŠ” 경우 직각의 μ •λ°˜λŒ€μ— μžˆλŠ” 이 선을 μ‚¬μš©ν•΄μ•Ό ν•˜λ©°
18:23
line directly opposite to the right angle, and this line is called the "hypotenuse".
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이 선을 "λΉ—λ³€"이라고 ν•©λ‹ˆλ‹€.
18:31
"Hypotenuse", okay?
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"μ €ν˜ˆμ••", μ•Œμ•˜μ§€?
18:34
You use that to calculate.
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당신은 그것을 κ³„μ‚°ν•˜λŠ” 데 μ‚¬μš©ν•©λ‹ˆλ‹€.
18:36
Now, when we're talking about triangles, or really any shape, like we can...
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자, μš°λ¦¬κ°€ μ‚Όκ°ν˜•, λ˜λŠ” μš°λ¦¬κ°€ ν•  수 μžˆλŠ” λͺ¨λ“  λͺ¨μ–‘에 λŒ€ν•΄ 이야기할 λ•Œ...
18:40
A rectangle in a box, in a rhombus, etc., we have angles and when you're talking about...
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μƒμž μ•ˆμ˜ μ§μ‚¬κ°ν˜•, λ§ˆλ¦„λͺ¨κΌ΄ λ“±, 각이 있고 당신이 말할 λ•Œ...
18:46
When we talk about angles we're talking about degrees.
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μš°λ¦¬κ°€ 말할 λ•Œ 각도에 λŒ€ν•΄ μš°λ¦¬λŠ” 각도에 λŒ€ν•΄ μ΄μ•ΌκΈ°ν•˜κ³  μžˆμŠ΅λ‹ˆλ‹€.
18:49
So, a circle is 360 degrees.
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λ”°λΌμ„œ 원은 360λ„μž…λ‹ˆλ‹€.
18:53
Now, if I have just a straight line, that's basically like the diameter of a circle.
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이제 μ§μ„ λ§Œ 있으면 기본적으둜 μ›μ˜ 지름과 κ°™μŠ΅λ‹ˆλ‹€.
18:59
If you think of this as a circle, this is the diameter, so it's 180 degrees for a straight line.
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이것을 μ›μœΌλ‘œ μƒκ°ν•˜λ©΄ 이것이 μ§€λ¦„μ΄λ―€λ‘œ μ§μ„ μ˜ 경우 180λ„μž…λ‹ˆλ‹€.
19:05
So we have 360, 180, and then we have 90.
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κ·Έλž˜μ„œ μš°λ¦¬λŠ” 360, 180, 그리고 90을 가지고 μžˆμŠ΅λ‹ˆλ‹€.
19:11
So when you have a line, when you have a square, when you have a straight line and another
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λ”°λΌμ„œ 선이 μžˆμ„ λ•Œ, μ •μ‚¬κ°ν˜•μ΄ μžˆμ„ λ•Œ, 직선이 있고 λ°”λ‘œ
19:16
straight line directly on top of it making a square, a right angle,
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μœ„μ— 또 λ‹€λ₯Έ 직선이 있으면 μ •μ‚¬κ°ν˜•, 직각을 λ§Œλ“­λ‹ˆλ‹€.
19:21
we call this a "perpendicular" line.
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이것을 "μˆ˜μ§μ„ "이라고 λΆ€λ¦…λ‹ˆλ‹€.
19:23
This line is standing perpendicular to this line.
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이 선은 이 선에 수직으둜 μ„œ μžˆμŠ΅λ‹ˆλ‹€.
19:27
Okay?
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μ’‹μ•„μš”?
19:28
We're going to get back to that in a second.
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μž μ‹œ 후에 λ‹€μ‹œ μ„€λͺ…ν•˜κ² μŠ΅λ‹ˆλ‹€.
19:30
Now, let's look at some other angles.
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이제 λ‹€λ₯Έ 각도λ₯Ό μ‚΄νŽ΄λ³΄κ² μŠ΅λ‹ˆλ‹€.
19:33
If you have an angle that is less than 90 degrees...
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각도가 90도 미만이면...
19:37
Okay?
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19:37
I hope you can sort of see it in this diagram.
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μ•Œμ•˜μ£ ?
이 λ‹€μ΄μ–΄κ·Έλž¨μ—μ„œ λ³Ό 수 있기λ₯Ό λ°”λžλ‹ˆλ‹€.
19:40
Less than 90 degrees it's an "acute angle", "acute".
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90도 미만이면 "예각", "예각"μž…λ‹ˆλ‹€.
19:45
Not "cute", "acute".
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"κ·€μ—½λ‹€", "μ˜ˆλ¦¬ν•˜λ‹€"κ°€ μ•„λ‹™λ‹ˆλ‹€.
19:47
Angle, sorry, not a good one.
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각도, μ£„μ†‘ν•©λ‹ˆλ‹€. 쒋지 μ•ŠμŠ΅λ‹ˆλ‹€.
19:49
If you have...
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가지고 μžˆλŠ” 경우...
19:50
If you have an angle that is more than 90 degrees we call this an "obtuse", "obtuse angle".
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90도 μ΄μƒμ˜ 각도가 μžˆλŠ” 경우 이λ₯Ό "둔각", "둔각"이라고 ν•©λ‹ˆλ‹€.
19:58
And then if you have an angle that's more than 180, so for example if I'm measuring
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그리고 각도가 180도 이상이면 예λ₯Ό λ“€μ–΄ 각도λ₯Ό μΈ‘μ •ν•˜λŠ” 경우
20:03
thing angle, it's more than 180 degrees, that's a "reflex angle".
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180 도 이상이면 "λ°˜μ‚¬ 각도"μž…λ‹ˆλ‹€.
20:09
So you have all these different angles to work with.
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κ·Έλž˜μ„œ 당신은 μž‘μ—…ν•  이 λͺ¨λ“  λ‹€λ₯Έ 각도λ₯Ό 가지고 μžˆμŠ΅λ‹ˆλ‹€ .
20:11
Again, very important for those of you who are doing geometry and whatnot to know the
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λ‹€μ‹œ λ§ν•˜μ§€λ§Œ, κΈ°ν•˜ν•™μ„ ν•˜λŠ” μ‚¬λžŒλ“€κ³Ό
20:16
names of these angles.
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이 κ°λ„μ˜ 이름을 λͺ¨λ₯΄λŠ” μ‚¬λžŒλ“€μ—κ²ŒλŠ” 맀우 μ€‘μš”ν•©λ‹ˆλ‹€.
20:17
Now, here we have a perpendicular line, means straight at 90 degrees or at a right angle
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이제 여기에 μˆ˜μ§μ„ μ΄ μžˆμŠ΅λ‹ˆλ‹€. 즉, λ‹€λ₯Έ 선에 λŒ€ν•΄ 90도 λ˜λŠ” 직각을 μ΄λ£¨λŠ” 직선을 μ˜λ―Έν•©λ‹ˆλ‹€
20:23
to another line.
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.
20:25
If it's not at a 90 degree angle, then it's on a "diagonal".
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90도 각도가 μ•„λ‹ˆλ©΄ "λŒ€κ°μ„ "에 μžˆμŠ΅λ‹ˆλ‹€.
20:29
So, diagonal is less or more than 90 degrees, it depends which way you're looking at it.
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λ”°λΌμ„œ λŒ€κ°μ„ μ€ 90도보닀 μž‘κ±°λ‚˜ ν½λ‹ˆλ‹€. λ³΄λŠ” λ°©ν–₯에 따라 λ‹€λ¦…λ‹ˆλ‹€.
20:36
Now, one last thing here, if you're looking at graphs...
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이제 μ—¬κΈ°μ„œ λ§ˆμ§€λ§‰μœΌλ‘œ κ·Έλž˜ν”„λ₯Ό 보고 μžˆλ‹€λ©΄...
20:40
Like, I'm not going to get into the details of the math here, but these two lines, they
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예λ₯Ό λ“€μ–΄ μ—¬κΈ°μ„œ μˆ˜ν•™μ˜ μ„ΈλΆ€ 사항에 λ“€μ–΄κ°€μ§€λŠ” μ•Šκ² μ§€λ§Œ 이 두 선은
20:45
intersect at this point, this is, like, usually the zero point base, whatever, at this point
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이 μ§€μ μ—μ„œ κ΅μ°¨ν•©λ‹ˆλ‹€. 일반적으둜 제둜 ν¬μΈνŠΈλ² μ΄μŠ€λŠ” 무엇이든 κ΅μ°¨ν•˜λŠ”μ΄ μ§€μ μ—μ„œ
20:51
they intersect, cross.
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κ΅μ°¨ν•©λ‹ˆλ‹€.
20:54
Now, generally this is the "x axis", this is the "y axis", and in this graph you have two axes.
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이제 일반적으둜 이것은 "x μΆ•"이고 이것은 "y μΆ•"이며 이 κ·Έλž˜ν”„μ—λŠ” 두 개의 좕이 μžˆμŠ΅λ‹ˆλ‹€.
21:03
Singular: "axis", plural: "axes".
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λ‹¨μˆ˜: "μΆ•", 볡수: "μΆ•".
21:07
Okay?
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21:07
So you know these lines.
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μ’‹μ•„μš”?
κ·Έλž˜μ„œ 당신은이 라인을 μ•Œκ³  μžˆμŠ΅λ‹ˆλ‹€.
21:08
And finally we have "parallel lines".
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그리고 λ§ˆμ§€λ§‰μœΌλ‘œ "평행선"이 μžˆμŠ΅λ‹ˆλ‹€.
21:11
Parallel lines are two lines that go in the same direction, but will never meet.
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평행선은 같은 λ°©ν–₯으둜 κ°€μ§€λ§Œ κ²°μ½” λ§Œλ‚˜μ§€ μ•ŠλŠ” 두 개의 μ„ μž…λ‹ˆλ‹€ .
21:16
Okay?
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μ’‹μ•„μš”?
21:17
So there's an equal distance between them, and that equal distance between them continues forever.
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κ·Έλž˜μ„œ κ·Έλ“€ μ‚¬μ΄μ—λŠ” 같은 거리가 있고, κ·Έλ“€ μ‚¬μ΄μ˜ 같은 κ±°λ¦¬λŠ” μ˜μ›νžˆ κ³„μ†λ©λ‹ˆλ‹€.
21:21
They're running along the same direction, the same track apart from each other, they
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그듀은 같은 λ°©ν–₯으둜, μ„œλ‘œ λ–¨μ–΄μ Έ μžˆλŠ” 같은 νŠΈλž™μ„ 따라 달리고 μžˆμŠ΅λ‹ˆλ‹€. 그듀은
21:26
will never meet.
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κ²°μ½” λ§Œλ‚˜μ§€ μ•Šμ„ κ²ƒμž…λ‹ˆλ‹€.
21:27
Okay, so I think we've covered basically everything on this here.
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자, μ—¬κΈ°μ—μ„œ 기본적으둜 λͺ¨λ“  것을 λ‹€λ£¨μ—ˆλ‹€κ³  μƒκ°ν•©λ‹ˆλ‹€.
21:32
Now, before I finish, I just want to say one thing:
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이제 끝내기 전에 ν•œ κ°€μ§€λ§Œ λ§ν•˜κ³  μ‹ΆμŠ΅λ‹ˆλ‹€.
21:35
I have just scratched the surface of math in this lesson.
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이 μˆ˜μ—…μ—μ„œ μˆ˜ν•™μ˜ ν‘œλ©΄μ„ κΈμ—ˆμŠ΅λ‹ˆλ‹€.
21:40
I know math is huge, it's a huge field, I don't pretend to know even a bit about it,
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λ‚˜λŠ” μˆ˜ν•™μ΄ κ±°λŒ€ν•˜κ³  κ±°λŒ€ν•œ λΆ„μ•ΌλΌλŠ” 것을 μ•Œκ³  있으며 그것에 λŒ€ν•΄ μ‘°κΈˆλ„ μ•„λŠ” μ²™ν•˜μ§€ μ•Šμ§€λ§Œ
21:47
but I wanted to give this to you as a starting point.
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이것을 좜발점으둜 μ œκ³΅ν•˜κ³  μ‹Άμ—ˆμŠ΅λ‹ˆλ‹€ .
21:50
From here you can go on and do whatever math you do, whatever specialty you have.
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μ—¬κΈ°μ—μ„œ κ³„μ†ν•΄μ„œ 당신이 ν•˜λŠ” λͺ¨λ“  μˆ˜ν•™, 당신이 가진 μ „λ¬Έ λΆ„μ•Όκ°€ 무엇이든 ν•  수 μžˆμŠ΅λ‹ˆλ‹€.
21:55
If you need to get into more...
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더 깊이 λ“€μ–΄κ°€μ•Ό ν•œλ‹€λ©΄...
21:57
Like in more depth, more detailed math, you're going to have to look that up on your own
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더 깊이 있고 더 μžμ„Έν•œ μˆ˜ν•™μ²˜λŸΌ 슀슀둜 찾아봐야 ν•  κ²ƒμž…λ‹ˆλ‹€.
22:01
because, again, I'm not going to be very helpful with the math part of it.
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그것. μ§ˆλ¬Έμ„
22:06
When you go to the forum at www.engvid.com to ask questions, please don't ask me any math questions.
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ν•˜κΈ° μœ„ν•΄ www.engvid.com의 ν¬λŸΌμ— 갈 λ•Œ λ‚˜μ—κ²Œ μˆ˜ν•™ μ§ˆλ¬Έμ„ ν•˜μ§€ λ§ˆμ‹­μ‹œμ˜€.
22:11
You can ask me about words.
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당신은 λ‚˜μ—κ²Œ 단어에 λŒ€ν•΄ λ¬Όμ–΄λ³Ό 수 μžˆμŠ΅λ‹ˆλ‹€.
22:12
Don't ask me to do any equations or anything like that.
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방정식 μ΄λ‚˜ 그와 μœ μ‚¬ν•œ 것을 μš”κ΅¬ν•˜μ§€ λ§ˆμ‹­μ‹œμ˜€.
22:16
Calculus, forget it; algebra, geometry, trigonometry, whatever.
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미적뢄학은 μžŠμ–΄λ²„λ¦¬μ„Έμš”. λŒ€μˆ˜ν•™, κΈ°ν•˜ν•™, 삼각법, 무엇이든.
22:22
Here are your basics. Okay?
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κΈ°λ³Έ 사항은 λ‹€μŒκ³Ό κ°™μŠ΅λ‹ˆλ‹€. μ’‹μ•„μš”?
22:23
If you have any questions, though, of course do come to the engVid forum and ask them.
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질문이 μžˆμœΌμ‹œλ©΄ λ¬Όλ‘  engVid ν¬λŸΌμ— μ˜€μ…”μ„œ μ§ˆλ¬Έν•˜μ‹­μ‹œμ˜€.
22:28
There's also going to be a quiz where you can practice with some of these words.
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λ˜ν•œ μ΄λŸ¬ν•œ 단어 쀑 일뢀λ₯Ό μ—°μŠ΅ν•  수 μžˆλŠ” ν€΄μ¦ˆκ°€ μžˆμ„ κ²ƒμž…λ‹ˆλ‹€.
22:33
If you like this video, and I hope you did, please subscribe to my YouTube channel.
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이 μ˜μƒμ΄ λ§ˆμŒμ— λ“œμ…¨λ‹€λ©΄ 제 유튜브 채널을 ꡬ독해 μ£Όμ„Έμš”.
22:38
And again, I hope you enjoyed it and I'll see you again soon.
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그리고 λ‹€μ‹œ ν•œ 번 즐거운 μ‹œκ°„ λ˜μ…¨κΈ°λ₯Ό 바라며 곧 λ‹€μ‹œ λ΅™κ² μŠ΅λ‹ˆλ‹€.
22:42
Bye-bye.
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μ•ˆλ…•.
이 μ›Ήμ‚¬μ΄νŠΈ 정보

이 μ‚¬μ΄νŠΈλŠ” μ˜μ–΄ ν•™μŠ΅μ— μœ μš©ν•œ YouTube λ™μ˜μƒμ„ μ†Œκ°œν•©λ‹ˆλ‹€. μ „ 세계 졜고의 μ„ μƒλ‹˜λ“€μ΄ κ°€λ₯΄μΉ˜λŠ” μ˜μ–΄ μˆ˜μ—…μ„ 보게 될 κ²ƒμž…λ‹ˆλ‹€. 각 λ™μ˜μƒ νŽ˜μ΄μ§€μ— ν‘œμ‹œλ˜λŠ” μ˜μ–΄ μžλ§‰μ„ 더블 ν΄λ¦­ν•˜λ©΄ κ·Έκ³³μ—μ„œ λ™μ˜μƒμ΄ μž¬μƒλ©λ‹ˆλ‹€. λΉ„λ””μ˜€ μž¬μƒμ— 맞좰 μžλ§‰μ΄ μŠ€ν¬λ‘€λ©λ‹ˆλ‹€. μ˜κ²¬μ΄λ‚˜ μš”μ²­μ΄ μžˆλŠ” 경우 이 문의 양식을 μ‚¬μš©ν•˜μ—¬ λ¬Έμ˜ν•˜μ‹­μ‹œμ˜€.

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