The measure of an exterior angle of a regular polygon is given below. Find the measure of an interior angle. Then find the number of sides. 40
What is the measure of an interior angle?

The polygon has 9sides with an interior angle measure of 140°

Step-by-step explanation:

The exterior angle of a regular polygon=360°/n

40°=360°/n

n=360°/40°=9

So the polygon has 9 sides thus, a nonagon.

The measure of the interior angle=(n-2)180°/n

=(9-2)×180°/9=140°

1. 3

2. 4

3. 1

hope this ! have a great day.

-wfz