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November 28, 2014

November 28, 2014

Posted by **Anonymous** on Tuesday, May 10, 2011 at 6:30pm.

- geometry -
**PsyDAG**, Tuesday, May 10, 2011 at 7:50pmIf B is in the center of the circle, and A and C touch the circumference, then AB = BC = r. Using Pythagorean theorem, we get:

2r^2 = 32^2 or r^2 = (32^2)/2

Solve for r^2. Insert that value into the equation below and solve for A.

A = 4πr^2

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