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January 29, 2015

January 29, 2015

Posted by **Ivan** on Sunday, January 16, 2011 at 12:39am.

- Geometry -
**Damon**, Sunday, January 16, 2011 at 5:57am2 pi r = 120

r = 60/pi

pi r^2 = pi (60^2/pi^2) = 3600/pi

=1146 cm^2

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