Interior Angles in Polygons

Front

What is the name of a 6 sided polygon?

Back

Hexagon

Front

What is the name of a 7 sided polygon?

Back

Heptagon

Front

What is the measure of ONE interior angle in a regular pentagon (5-sides)?

Back

108°

Front

What is the measure of ONE interior angle in a regular hexagon (6 sides)?

Back

120°

Front

What is the sum of the interior angles for a 24-gon?

Back

3960°

Front

How do you calculate the sum of interior angles in a polygon?

Back

(n - 2) × 180°, where n is the number of sides.

Front

What is the measure of ONE interior angle in a regular octagon (8 sides)?

Back

135°

Front

What is the measure of ONE interior angle in a regular nonagon (9 sides)?

Back

140°

Front

What is the measure of ONE interior angle in a regular decagon (10 sides)?

Back

144°

Front

What is the name of a polygon with 12 sides?

Back

Dodecagon