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February 1, 2015

February 1, 2015

Posted by **JOY** on Tuesday, May 24, 2011 at 10:31am.

- geometry -
**Henry**, Wednesday, May 25, 2011 at 3:58pmP = 4 * 105.5 = 422m = perimeter of the base.

Al=P*Hs / 2 = 422 * 65.5 / 2=13,821m^2.

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