SOLUTION: Area of circular ring A=2pi(P)(w) Solve for P Find P given A=22cm^ and w=2cm

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Question 213392: Area of circular ring
A=2pi(P)(w) Solve for P
Find P given A=22cm^ and w=2cm
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
A+=+2%28pi%29%28P%29%28w%29 Solve for P: Divide both sides by 2%28pi%29%28w%29
A%2F2%28pi%29%28w%29+=+P For A = 22sq.cm and w = 2cm,
P+=+22%2F2%28pi%29%282%29
P+=+11%2F2%28pi%29