If the circumference of the circle below is 42 cm, what is the length of AB ?
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OpenStudy (anonymous):
OpenStudy (jhannybean):
arc length/ 42 = 120/360
x/42 = 1/3
3x = 42
x = ?
OpenStudy (anonymous):
14 :D
OpenStudy (jhannybean):
Sorry, formula = arclength / C = angle measure of arc/ 360 deg
OpenStudy (jhannybean):
Is that one of your answer choices, @atrabilious ? :)
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OpenStudy (mayankdevnani):
always remember
\[\huge \frac{arc~length}{circumference}=\frac{\angle~of~arc}{360}\]
and plug the values in this equation and find the value of arc length
ok... @atrabilious
OpenStudy (anonymous):
\[(120\div360)\times(2 pi r)=\] AB
AB= 1/3 x 42
AB= 14
OpenStudy (mayankdevnani):
and you are correct, its 14 cm
OpenStudy (jhannybean):
lol thank you mayank
OpenStudy (mayankdevnani):
welcome jhanny
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OpenStudy (anonymous):
All of you did good, if one of you can answer this you will get best response since i already become a fan of all of you, (:. I
OpenStudy (anonymous):
I lie between what is sleep and awake, i take your thoughts and push them away to keep safe.
OpenStudy (anonymous):
asleep*
OpenStudy (anonymous):
Would you like a hint ?
OpenStudy (anonymous):
Sure
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OpenStudy (anonymous):
It's psychology based
OpenStudy (anonymous):
subconscious?
OpenStudy (anonymous):
Almost (:
OpenStudy (jhannybean):
conscious
OpenStudy (anonymous):
Both of you are so close where do those things come from ?
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OpenStudy (anonymous):
mind
OpenStudy (jhannybean):
cognitive. cognition,idk.
OpenStudy (anonymous):
I'll make this easy, the word i'm looking for starts with a p (:
OpenStudy (anonymous):
psychology
OpenStudy (anonymous):
Nope
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OpenStudy (jhannybean):
psych.lol.
OpenStudy (anonymous):
you forgot the e
OpenStudy (jhannybean):
psyche.
OpenStudy (anonymous):
but you got it @Jhannybean
OpenStudy (jhannybean):
woo!
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OpenStudy (anonymous):
Congrats (:
OpenStudy (anonymous):
I actually liked doing that it makes it more fun don't you think ?