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stupidinmath Group TitleBest ResponseYou've already chosen the best response.0
Area of full circle: A = πr² A = π(9)² A = 81π A = 254.4690049
 11 months ago

superdavesuper Group TitleBest ResponseYou've already chosen the best response.1
But its not a full circle  its only 240deg....so...
 11 months ago

stupidinmath Group TitleBest ResponseYou've already chosen the best response.0
yeah.. subtract it?
 11 months ago

stupidinmath Group TitleBest ResponseYou've already chosen the best response.0
Or.. idk T.T
 11 months ago

superdavesuper Group TitleBest ResponseYou've already chosen the best response.1
How many deg. are there in a full circle?
 11 months ago

liliegirl Group TitleBest ResponseYou've already chosen the best response.2
@superdavesuper Angle aob measures 120 deg?
 11 months ago

superdavesuper Group TitleBest ResponseYou've already chosen the best response.1
so what do u think? :)
 11 months ago

stupidinmath Group TitleBest ResponseYou've already chosen the best response.0
i'm thinking 240 is the answer.. but how.. im not sure
 11 months ago

superdavesuper Group TitleBest ResponseYou've already chosen the best response.1
@liliegirl yes...according to the drawing.
 11 months ago

superdavesuper Group TitleBest ResponseYou've already chosen the best response.1
No, the shaded area is a PORTION of a full circle...u already calculated the area for a full circule...so what portion is shaded?
 11 months ago

liliegirl Group TitleBest ResponseYou've already chosen the best response.2
@superdavesuper Area of the sector is 27pi so subtract it from the area of the full circle.... Am I correct?
 11 months ago

superdavesuper Group TitleBest ResponseYou've already chosen the best response.1
No need to substract...just a simple ratio and proportion @liliegirl
 11 months ago

liliegirl Group TitleBest ResponseYou've already chosen the best response.2
@superdavesuper The area is 54pi?? Just a guess..... :)))
 11 months ago

stupidinmath Group TitleBest ResponseYou've already chosen the best response.0
the area of full circle minus the unshaded part?
 11 months ago

stupidinmath Group TitleBest ResponseYou've already chosen the best response.0
Any formula or something?
 11 months ago

superdavesuper Group TitleBest ResponseYou've already chosen the best response.1
Full circule  360 deg. shaded  270 deg.
 11 months ago

stupidinmath Group TitleBest ResponseYou've already chosen the best response.0
270 or 240? so complicated
 11 months ago

liliegirl Group TitleBest ResponseYou've already chosen the best response.2
Shaded is 240..
 11 months ago

stupidinmath Group TitleBest ResponseYou've already chosen the best response.0
the answer is not 345.53?
 11 months ago

liliegirl Group TitleBest ResponseYou've already chosen the best response.2
My answer is 169.65
 11 months ago

superdavesuper Group TitleBest ResponseYou've already chosen the best response.1
Sorry I miss typed. Shaded is 240 n @liliegirl has the right answer of 54 pi :)
 11 months ago

stupidinmath Group TitleBest ResponseYou've already chosen the best response.0
I see. @liliegirl how did you get it? :)
 11 months ago

liliegirl Group TitleBest ResponseYou've already chosen the best response.2
You have to get the area of the unshaded part.. that is a sector... Area of the sector is \[\pi(9^{2})(180)\div360\] which is 27pi... Then subtract from the area of the full circle (81pi) You'll come up with 54pi. :))
 11 months ago

superdavesuper Group TitleBest ResponseYou've already chosen the best response.1
should be 120deg....or u can simply multiply the total area by 270/360. either way will work out the same.
 11 months ago

liliegirl Group TitleBest ResponseYou've already chosen the best response.2
Sorry.. typo error.. haha it should be 120...
 11 months ago

stupidinmath Group TitleBest ResponseYou've already chosen the best response.0
thank you so much! :)
 11 months ago
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