What is the formula for finding the area of a circle?

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- May 23rd 2006, 08:32 PMlowriding 4 lifeSurface area of cylinders (I really need help fast)
What is the formula for finding the area of a circle?

- May 23rd 2006, 08:44 PMCaptainBlackQuote:

Originally Posted by**lowriding 4 life**

A_{circle}=\pi r^2

$.

Curved surface area of cylinder:

$\displaystyle

A_{cylinder\ curved}=2\pi\ r. h

$