Find The Measure Of An Exterior Angle Of A Regular Polygon Of 9 Sides. Punineep and 11 more users found this answer helpful. He goes on further to explain the formula by taking an 18-sided regular polygon as example and computes its exterior angle as 36018 which is 20 degrees.
The sum of the external angles of a polygon is always 360. A walk around the perimeter of the polygon would find the walker take one full turn 360 degrees and in a regular polygon this will be broken down in to n turns one for each side walked down. He shows the formula to find it which is 360n where n is the number of sides of the regular polygon.
The sum of the exterior angles of any regular polygon is 360 degrees.
Find the measure of each exterior angle of a regular polygon of i 9 sides ii 15 sides. Exterior angle of regular polygon is same. Now you are heading in a direction o. The sum of all internal angles of a polygon can be find with the formula n-2180 where n is the number of the sides.