Angles of Polygons
What is the sum of the interior angles of an octagon?
1080°
What is the measure of ONE interior angle of a regular pentagon?
108°
What is the sum of the interior angles of a nonagon?
1260°
What is the measure of ONE interior angle of a regular decagon?
144°
What is the measure of ONE interior angle of a regular 16-gon?
157.5°
sum of interior angles of a polygon formula
180(n-2)
What is the sum of the measures of the interior angles of a triangle?
180°
What is the measure of ONE exterior angle of a regular 16-gon?
22.5°
sum of exterior angles of a polygon
360°
What is the measure of ONE exterior angle of a regular decagon?
36°
What is the sum of the interior angles of a pentagon?
540°
What is the measure of ONE exterior angle of a regular hexagon?
60°
What is the measure of ONE interior angle of a regular triangle?
60°
What is the sum of the interior angles of a hexagon?
720°
What is the measure of ONE exterior angle of a regular pentagon?
72°
What is the sum of the interior angles of a heptagon?
900°
What is the measure of ONE interior angle of a regular quadrilateral?
90°