Find The Sum Of The Measures Of The Interior Angles Of Each Convex Polygon Decagon. Socratic The sum of the measures of the interior angles of a convex polygon is 8640. Sum of angles of a 11-gon 11 - 2 x 9 x Sum of angles of a 11-gon To check.
So n 180-E n150 12150 1800 is another way to get. Substitute n 10 in. If this were a regular dodecagon all sides congruent then E 360n 36012 30 is the measure of each exterior angle.
Substituting for n10 in the equation above Sum 10 - 2180 8 x 180 1440 The sum of the measure of the interior angles of a decagon.
Socratic The sum of the measures of the interior angles of a convex polygon is 8640. A 23 -gon has twenty -three sides. Pentagon 628721 A pentagon has five sides. The sum of all of the interior angles can be found using the formula S n - 2180.