write a formula giving the area of a circle in terms of its circumference.

Question

calculusxy · Answer

A=πr² --- call this Equation 1

C=2πr --- call this Equation 2


From Equation 2,

r = C/2π

and substituting this in Equation 1,

A = π(C/2π)^2

A = π(C^2/4π^2)

Simplifying,

A = C^2/(4π

Yahoo answers

This one provided two equations.

goformit100 · Answer

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