What Is The Sum Of Interior And Exterior Angles. The formula for the sum of that polygons interior angles is refreshingly simple. 720 900 1080 1260 720 alternatives.
Besides for finding the sum of the measure of interior angles the formula is n 2 180. Angles in Polygons. Set up the formula for finding the sum of the interior angles.
As you can see from the picture below if you add up all of the angles in a triangle the sum must equal 180.
So if the measure of this angle is a the measure of this angle over here is b and the measure of this angle is c we know that a plus b plus c is equal to 180 degrees. The other part of the formula is a way to determine how many triangles the polygon can be divided into. Here is the formula. The area of a triangle is ½ x base x height.
