ch 6.1: interior and exterior angles
Sum of the interior angles of a decagon.
1440 degrees
The measure of each interior angle of a regular dodecagon.
150 degrees
Sum of the interior angles of a dodecagon.
1800 degrees
The measure of each exterior angle of a regular dodecagon.
30 degrees
The measure of each exterior angle of a regular decagon.
36 degrees
The sum of the exterior angles of a dodecagon.
360 degrees
The measure of each exterior angle of a regular nonagon.
40 degrees
The measure of each exterior angle of a regular octagon.
45 degrees
The measure of each exterior angle of a regular heptagon.
51.43 degrees
Sum of the interior angles of a pentagon.
540 degrees
The measure of each exterior angle of a regular hexagon.
60 degrees
The measure of each exterior angle of a regular pentagon.
72 degrees
Sum of the interior angles of a hexagon.
720 degrees
Sum of the interior angles of a heptagon.
900 degrees
The measure of each interior angle of a regular pentagon.
108 degrees
Sum of the interior angles of a octagon.
1080 degrees
The measure of each interior angle of a regular hexagon.
120 degrees
Sum of the interior angles of a nonagon.
1260 degrees
The measure of each interior angle of a regular heptagon.
128.57 degrees
The measure of each interior angle of a regular octagon.
135 degrees
The measure of each interior angle of a regular nonagon.
140 degrees
The measure of each interior angle of a regular decagon.
144 degrees
