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.