SOLUTION: how do you find diameter when given area

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Question 70497: how do you find diameter when given area
Answer by Earlsdon(5027) About Me  (Show Source):
You can put this solution on YOUR website!
Start with the formula for the area of a circle:
A+=+%28pi%29r%5E2 Divide both sides by %28pi%29
A%2F%28pi%29+=+r%5E2 Take the square root of both sides.
sqrt%28A%2F%28pi%29%29+=+r Now multiply both sides by 2 since D = 2r
D+=+2sqrt%28A%2F%28pi%29%29