Answer:
22.5°
Explanation:
The sum of the exterior angles of any given polygon is 360°. Therefore, the size of an exterior angle of any given polygon would be 360° ÷ the number of sides of that polygon.
Thus, given a regular polygon with 16 sides, the sum of the exterior angles of the 16-gon = 360°.
The measure of one exterior angle of the 16-gon = 360° ÷ 16 = 22.5° (nearest tenth).