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December 21, 2014

Homework Help: Geometry help

Posted by Ella on Wednesday, April 21, 2010 at 7:47pm.

A parallelogram has a 7-inch side and a 9-inch side, and the longer diagonal is 14 inches long. Find the length of the other diagonal. Do you need your calculator to do it?

then, (Continuation) Evaluate 72 + 92 + 72 + 92 − 142 − d2, where d is the length of the shorter diagonal.

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