Find the measure of each exterior angle of a regular pentagon.

a. 36°
b. 72°
c. 108°
d. 40°

c. 108°

To find the measure of each exterior angle of a regular pentagon, we can use the formula:

Exterior angle = 360° / number of sides

Since a regular pentagon has 5 sides, we can plug that into the formula:

Exterior angle = 360° / 5 = 72°

Therefore, the answer is option b. 72°.