Question

n

Answer 1

180- 540/5 or 360/5

Answer 2

That angle with measure x is an exterior angle. The sum of the exterior angles of a polygon is 360. There are 5 of them, one per vertex. Because the polygon is regular, the interior as well as exterior angles are congruent.

360/5 = 72 degrees for x. The adjacent and supplementary interior angle is 108 degrees.

72 degrees for x --> Answer