February 25, 2017

Homework Help: Geometry

Posted by sam on Wednesday, September 2, 2009 at 10:22pm.

How do I figure out the area and perimeter of a square if all I know is the cross (top left corner to bottom right corner) measurement? I have a square with the cross measurement of 8.5 (or 4 X sq root of 2, i rounded to 8.5). The square looks like it is cut in half to look like 2 triangles and in the corner of one triangle it says 45 degrees.
Please help me, I am so confused, is there a formula to figure this problem out?

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