CCG - CH8 Polygon angles and area Review

Front

What is the formula for the sum of interior angles in a polygon?

Back

180(n−2)

Front

How do you find the measure of one exterior angle of a regular polygon?

Back

Divide 360 by the number of sides (n).

Front

What is the measure of one interior angle in a regular decagon?

Back

144°

Front

What is the sum of the interior angles in a hexagon?

Back

720°

Front

How many sides does a nonagon have?

Back

9 sides

Front

What is the measure of one angle in a regular nonagon?

Back

140°

Front

What is the sum of the interior angles in an octagon?

Back

1080°

Front

What is the measure of one exterior angle of a regular pentagon?

Back

72°

Front

How do you calculate the number of sides in a polygon if you know the sum of the interior angles?

Back

Use the formula n = (sum of interior angles + 360) / 180.

Front

What is the measure of one exterior angle of a regular hexagon?

Back

60°