### Home > CCG > Chapter 12 > Lesson 12.2.3 > Problem 12-89

12-89.

If the sum of the interior angles of a regular polygon is

According to the formula for the sum of the interior angles of an *n*-gon,

The polygon has

12-89.

If the sum of the interior angles of a regular polygon is

According to the formula for the sum of the interior angles of an *n*-gon,

The polygon has