What is the sum of the measures of the interior angle of a convex n-gon?
1. In each polygon, draw all the diagonals from one vertex. Notice that the diagonals divide the polygon into triangles.[br][br]2. By the Triangle Angle Sum Theorem, the sum of the interior angles of a triangle is [math]180^o[/math]. Use this theorem to complete the table.
Based on the data in your table, which of the following expressions would you use to determine the number of triangles in an n-gon?
Based on the data in your table, which of the following expressions would you use to determine the sum of the measures of the interior angles of an n-gon?
In a regular polygon, all interior angles are the same measurement. Knowing this, how can we find the measure of a specific interior angle of a regular polygon?