Study Guide and Review
Sign In
The Polygon Interior Angles Sum Theorem says that the sum of the measures of the interior angles of an n -sided convex polygon is (n-2)180.
2340
The Polygon Interior Angles Sum Theorem states that the sum of interior angle measures of a n-sided convex polygon is ( n-2)180. To find the sum of the measures of the interior angles of a 15-gon, we have to substitute 15 for n in this expression.