Sum of Angles inside a PolygonDate: 2/18/96 at 19:52:58 From: Mr. Patrick J. Smiley Subject: Geometry What is the sum of the angles inside a 10-sided polygon? Date: 3/9/96 at 23:16:33 From: Doctor Jodi Subject: Re: Geometry Hi Patrick! On a flat plane, any polygon with n sides has an angle sum of (n-2)*180 degrees. For example, triangles have 3 sides, so the sum of their interior angles is (3-2)*180 = 180 degrees. A quadrilateral has 4 sides, so its angle sum is (4-2)*180 = 360 degrees. Now can you apply the formula to find the interior angle sum of a 10-sided polygon? Can you think of any problems this could help solve? -Doctors Ken and Jodi, The Math Forum |
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