Summary
Interior Angles of a Polygon

scaffolding with numerous angles

The use of geometry in this scaffolding keeps workers safe.

You have completed your study of the interior angles of polygons. You learned how to use the formula 180(n − 2) to find the sum of all angles inside of a polygon. You also learned how to solve for missing variables related to the interior angles of a polygon. As you continue to explore polygons, see if you can identify any similarities between solving problems involving interior and exterior angles of a polygon.