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April 1, 2015

April 1, 2015

Posted by **kerry** on Tuesday, May 22, 2012 at 6:57pm.

- math: advanced geometry -
**Reiny**, Tuesday, May 22, 2012 at 8:06pm(4/3)πr^3 = 12348π

r^3 = 9261

r = cuberoot(9261) = 21

SA = 4πr^2 = 4π(441) = 1764π square inches

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