Find The Sum Of The Measures Of The Interior Angles Of The Convex Polygon With N=15. For example for a pentagon this would equal 5-2180 3. Hexagon 165 720 16 -gon 165 2520 ART Jen is making a frame to stretch a canvas over for a painting.
Investigate the sum of interior angles in polygons. Of sides of the polygon. First use the Polygon Angle Sum Theorem to find the sum of the interior angles.
Example 1 Determine the unknown angle measures.
Hence we can say now if a convex polygon has n sides then the sum of its interior angle is given by the following formula. Use the Polygon Interior Angles Sum Theorem to find the sum of its interior angle measures. Substitute n 18 in. It is also possible to calculate the measure of each angle if the polygon is regular by dividing the sum by the number of sides.