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Area of full circle: A = πr² A = π(9)² A = 81π A = 254.4690049
But its not a full circle - its only 240deg....so...
yeah.. subtract it?

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Other answers:

Or.. idk T.T
How many deg. are there in a full circle?
360
@superdavesuper Angle aob measures 120 deg?
so what do u think? :)
i'm thinking 240 is the answer.. but how.. im not sure
@liliegirl yes...according to the drawing.
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?
@superdavesuper Area of the sector is 27pi so subtract it from the area of the full circle.... Am I correct?
No need to substract...just a simple ratio and proportion @liliegirl
@superdavesuper The area is 54pi?? Just a guess..... :)))
the area of full circle minus the unshaded part?
Any formula or something?
Full circule - 360 deg. shaded - 270 deg.
270 or 240? so complicated
Shaded is 240..
the answer is not 345.53?
My answer is 169.65
Sorry I miss typed. Shaded is 240 n @liliegirl has the right answer of 54 pi :)
I see. @liliegirl how did you get it? :)
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. :))
should be 120deg....or u can simply multiply the total area by 270/360. either way will work out the same.
Sorry.. typo error.. haha it should be 120...
thank you so much! :)

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