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stupidinmath
 2 years ago

stupidinmath
 2 years ago


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

superdavesuper
 2 years ago
Best ResponseYou've already chosen the best response.1But its not a full circle  its only 240deg....so...

stupidinmath
 2 years ago
Best ResponseYou've already chosen the best response.0yeah.. subtract it?

superdavesuper
 2 years ago
Best ResponseYou've already chosen the best response.1How many deg. are there in a full circle?

liliegirl
 2 years ago
Best ResponseYou've already chosen the best response.2@superdavesuper Angle aob measures 120 deg?

superdavesuper
 2 years ago
Best ResponseYou've already chosen the best response.1so what do u think? :)

stupidinmath
 2 years ago
Best ResponseYou've already chosen the best response.0i'm thinking 240 is the answer.. but how.. im not sure

superdavesuper
 2 years ago
Best ResponseYou've already chosen the best response.1@liliegirl yes...according to the drawing.

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

liliegirl
 2 years ago
Best 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?

superdavesuper
 2 years ago
Best ResponseYou've already chosen the best response.1No need to substract...just a simple ratio and proportion @liliegirl

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

stupidinmath
 2 years ago
Best ResponseYou've already chosen the best response.0the area of full circle minus the unshaded part?

stupidinmath
 2 years ago
Best ResponseYou've already chosen the best response.0Any formula or something?

superdavesuper
 2 years ago
Best ResponseYou've already chosen the best response.1Full circule  360 deg. shaded  270 deg.

stupidinmath
 2 years ago
Best ResponseYou've already chosen the best response.0270 or 240? so complicated

stupidinmath
 2 years ago
Best ResponseYou've already chosen the best response.0the answer is not 345.53?

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

stupidinmath
 2 years ago
Best ResponseYou've already chosen the best response.0I see. @liliegirl how did you get it? :)

liliegirl
 2 years ago
Best ResponseYou've already chosen the best response.2You 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. :))

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

liliegirl
 2 years ago
Best ResponseYou've already chosen the best response.2Sorry.. typo error.. haha it should be 120...

stupidinmath
 2 years ago
Best ResponseYou've already chosen the best response.0thank you so much! :)
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