### Home > INT2 > Chapter 9 > Lesson 9.3.1 > Problem9-83

9-83.

Review what you know about the angles of polygons below.

1. If the exterior angle of a polygon is $29^\circ$, what is the interior angle?

$180^\circ - 29^\circ = 151^\circ$

2. If the interior angle of a polygon is $170^\circ$, can it be a regular polygon? Why or why not?

Yes, a regular $36$-gon has interior angles of $170^\circ$.

3. Determine the sum of the interior angles of a regular $29$-gon.

$(n - 2)(180^\circ) =$ sum of the interior angles