Question

1. what is the sum of the exterior angles, one at each vertex, of a polygon with 20 sides? 180° 360° 20° we need more information.

Explanation:

Step1: Recall the exterior - angle sum theorem

The sum of the exterior angles of any polygon, one at each vertex, is always 360°. This is a well - known geometric property and does not depend on the number of sides of the polygon.

Answer:

B. 360°