Interior angle sum of polygons

What you'll learn

1. Calculate the interior angle sum of any convex polygon using the formula (n-2)*180
2. Calculate the measure of each interior angle of a regular polygon using (n-2)*180/n
3. State and apply the fact that the sum of exterior angles of any convex polygon is 360 degrees
4. Calculate each exterior angle of a regular polygon using 360/n
5. Determine the number of sides of a polygon given an interior or exterior angle measure

Prerequisites

• Triangle angle sum and exterior angle theorem