SOLUTION: what is the area of the circle having radius of 21ft. after a sector of 120 degrees have been remove?

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Question 731374: what is the area of the circle having radius of 21ft. after a sector of 120 degrees have been remove?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
what is the area of the circle having radius of 21ft.
after a sector of 120 degrees have been remove?
:
120%2F360 = 1%2F3 removed, 2/3 remains
:
2%2F3*pi%2A21%5E2 = 923.628 sq/ft