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April 1, 2015

April 1, 2015

Posted by **Jill** on Monday, October 24, 2011 at 12:18am.

- Biology/math? -
**drwls**, Monday, October 24, 2011 at 5:08am(pi/4)*(3 mm)^2 = (9/4)*pi mm^2

= 7.07 mm^2

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