Question

What is the sum of the inner and outer angles at the vertex of a polygon?

Answer 1

The sum of the external angles of any simple convex or non-convex polygon is 360°. The measure of the exterior angle at a vertex is unaffected by which side is extended: the two exterior angles that can be formed at a vertex by extending alternately one side or the other are vertical angles and thus are equal

Answer 2

Answer:

Step-by-step explanation:

180 degree