Interior and Exterior Angles of Polygons

the number of interior angles of a 17-gon

17

the sum of interior angles of a 14-gon

2160'

the sum of the exterior angles of all regular polygons is

360'

the measure of each exterior angle of any regular polygon

360/n

the sum of interior angles of a 23-gon

3780'

Sum of the measure of the interior angles of a pentagon

540'

the measure of each exterior angle of a regular hexagon

60'

the measure of each interior angle of an equilateral triangle

60'

the measure of each exterior angle of a regular pentagon

72'

Sum of the measure of the interior angles of a hexagon

720'

the measure of each exterior angle of a square (quadrilateral)

90'

the measure of each interior angle of a square (quadrilateral)

90'

Sum of the measure of the interior angles of any polygon

(n-2)180

the measure of each interior angle of a regular pentagon

108'

the measure of each exterior angle of an equilateral triangle

120'

the measure of each interior angle of a regular hexagon

120'