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stupidinmath
 one year ago

stupidinmath
 one year ago


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stupidinmath
 one year 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
 one year ago
Best ResponseYou've already chosen the best response.1But its not a full circle  its only 240deg....so...

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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