Interior/Exterior Angles of Polygons

The measure of one interior angle in a pentagon

108 degrees

The sum of the interior angles in an octagon

1080 degrees

The measure of one interior angle in a hexagon

120 degrees

The measure of one interior angle in an octagon

135 degrees

The measure of one interior angle in a dodecagon

150 degrees

The sum of the interior angles in a dodecagon

1800 degrees

The measure of one exterior angle of a regular dodecagon

30 degrees

The measure of one exterior angle of a regular decagon

36 degrees

The sum of a polygon's exterior angles

360 degrees

The measure of one exterior angle of a regular nonegon

40 degrees

The sum of the interior angles in a pentagon

540 degrees

The measure of one exterior angle of a regular hexagon

60 degrees

The measure of one exterior angle of a regular pentagon

72 degrees

The sum of the interior angles in a hexagon

720 degrees

Polygon

a closed figure formed by segments called sides, that intersect w/ other sides at their endpoints called vertices

Regular Polygon

a polygon that is both equilateral and equiangular

10-sided polygon

decagon

12-sided polygon

dodecagon

6-sided polygon

hexagon

n-sided polygon

n-gon

9-sided polygon

nonegon

8-sided polygon

octagon

5-sided polygon

pentagon

4-sided polygon

quadrilateral