Posted by **Emily** on Thursday, March 29, 2007 at 9:13am.

Find the interior and exterior angle measurements of a polygon with this many sides:

**x=2y**
help? I don't want the answer, I just would like to know how to do this one.

I don't see why a number of sides is being specified as an equation.

The SUM of the exterior angles of a polygon is always 360 degrees. If there are x sides, AND IF the angles at each vertex are equal (as in the case of a regular polygon), each exterior angle is 360/x degrees.

Each interior angle of a regular polygon with x sides is 180 (x-2)/x

Oh. I'm sorry. I meant

**2x+y**
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