Homework Help: geometry

Posted by nini on Thursday, March 11, 2010 at 12:51pm.

In the diagram, ABCDE is a regular pentagon with the measure of represented by 2x + 1. If the perimeter of the pentagon is 45, find the value of x.

geometry - Ms. Sue, Thursday, March 11, 2010 at 12:56pm
5(2x + 1) = 45
10x + 5 = 45
10x = 40
x = ?

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