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

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Question 610678: how many sides are there if each interior angle has 108 degrees
Answer by radh(108) About Me  (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: i%2Be=180. 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, 360%2Fe=s where s equals the number of sides. 360/72=5. There are 5 sides to your polygon, so it is a pentagon. :)