SOLUTION: all about the area of the circle?

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Question 73981: all about the area of the circle?

Answer by psbhowmick(489) About Me  (Show Source):
You can put this solution on YOUR website!
If the radius of a circle is r then the area of the circle = pi%2Ar%5E2 where pi=22%2F7+=+3.14 approx.

Example:
If the diameter of a circle is 14 cm, then the radius is r=14%2F2=7 cm. The area of the circle = pi%2A7%5E2+=+%2822%2F7%29%2A7%5E2+=+22%2A7+=+154 sq. cm.