Find The Sum Of The Measures Of The Interior Angles Of Each Convex Polygon Nonagon. The sum of the interior angle measures for all convex polygons is always 2 less than the number of sides times 180 degrees. For the nonagon shown find the unknown angle measure x.
Substitute n 18 in. N - 2 180 n. A regular polygon is a flat shape whose sides are all equal and whose angles are all equal.
The sum of the measures of the interior angles of a convex polygon with n sides is S n-2 180 0.
The sum of all of the interior angles can be found using the formula S n 2180. The sum of the interior angle measures for all convex polygons is always 2 less than the number of sides times 180 degrees. 32 -gon 628721 A 32 -gon has thirty two sides. Find the sum of the interior angle measures of a convex nonagon a nine-sided polygon.