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# What is the mathematical formula for figuring the circumference of a circle when the square foot area is all that is known?

Wiki User

2010-05-16 00:15:53

Area = pi * r2

Circumference = 2 * pi * r

Pi = 3.141592

r = square root of Area/pi

Cir then = 2 * pi * (square root of Area/pi)

Wiki User

2010-05-16 00:15:53
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