Question

find the measure of each interior and exterior angles of a regular nonagon

Answer 1

each interior angle of the regular 9-gon is 140 degrees and exterior angle is 40 degrees each

Answer 2

Answer:

All sides are the same length (congruent) and all interior angles are the same size (congruent). To find the measure of the angles, we know that the sum of all the angles is 1260 degrees (from above)... And there are nine angles... So, the measure of the angle of a regular nonagon is 140 degrees.