How To Calculate Interior And Exterior Angles Of A Pentagon. S u m n 2 180 displaystyle sum n-2times 180 where. Interior angle sum of a pentagon 3 x 180 540 If the polygon is regular - all its interior angles are equal - you can use the result of the angle sum above to calculate the size of each angle.
N 2 180. Find the measure of the eight angles of a polygon if the first seven angles are 132 each. The measure of each interior angle of an equiangular n -gon is If you count one exterior angle at each vertex the sum of the measures of the exterior angles of a polygon is always 360.
The interior angle is 180 - 72 108circ.
The sum of interior angles in a quadrilateral is 360o A pentagon five-sided polygon can be divided into three triangles. N displaystyle n equals the number of sides in the polygon. Finding interior angles of polygons. S u m displaystyle sum is the sum of the interior angles of the polygon and.