SOLUTION: what is the area of a three quarter circle with the radius of four cm (also is the formula 2pi r)

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Question 830353: what is the area of a three quarter circle with the radius of four cm (also is the formula 2pi r)
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
2 pi r is circumference
pi*r^2 is area
3/4*pi*4^2
3*pi*4
12*pi