SOLUTION: how many sides are there if each interior angle has 108 degrees

Question 610678: how many sides are there if each interior angle has 108 degrees
Answer by radh(108) (Show Source): You can put this solution on YOUR website!
To find how many sides there are, you'd first have to know the exterior angles to the interior angles. Interior Angles + Exterior Angles always have to equal 180�. Here's a formula: . We know that the interior is 108, so 180-108=72. Each exterior angle is 72�. All of the exterior angles together must equal 360�. So, where s equals the number of sides. 360/72=5. There are 5 sides to your polygon, so it is a pentagon. :)
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