Question

The measure of an exterior angle at the vertex of a polygon equals the measures of the adjacent interior angle

Answer 1

The sum of the measures of the interior angles of a polygon with n sides is (n – 2)180. The measure of each interior angle of an equiangular n-gon is. If you count one exterior angle at each vertex, the sum of the measures of the exterior angles of a polygon is always 360° -hope this helped!