Angles of a Polygon
(n-2)180
Formula for sum of interior angles of an n-gon
20
How many sides does a regular polygon have if the measure of ONE exterior angle is 18°?
140°
If one exetrior angle of a regular polygon is 40°, what is the measure of one interior angle?
6
If the measure of ONE interior angle of a regular polygon is 120°, how many sides does it have?
8
If the measure of ONE interior angle of a regular polygon is 135°, how many sides does it have?
3
If the measure of ONE interior angle of a regular polygon is 60°, how many sides does it have?
4
If the measure of ONE interior angle of a regular polygon is 90°, how many sides does it have?
9
If the measure of any exterior angle of a regular polygon is 40°, how many sides does it have?
20°
What is the measure of ONE exterior angle of a regular 18-gon?
45°
What is the measure of ONE exterior angle of a regular octagon?
162°
What is the measure of ONE interior angle of a regular 20-gon?
135°
What is the measure of ONE interior angle of a regular octagon?
72°
What is the measure of any exterior angle of a regular polygon with 5 sides?
40°
What is the measure of any exterior angle of a regular polygon with 9 sides?
360°
What is the sum of the exterior angles of an octagon?
900°
What is the sum of the interior angles of a heptagon?
720°
What is the sum of the interior angles of a hexagon?
1080°
What is the sum of the interior angles of an octagon?
2880°
What is the sum of the measures of the interior angles of am 18-gon?
1620°
What is the sum of the measures of the interior angles of an 11-gon?