Interior and Exterior Angle Theorems

Front

A polygon with 8 sides is called a(n) __________________.

Back

octagon

Front

Using the Polygon Interior Angle Sum Theorem, what is the interior angle sum of a 9-sided polygon?

Back

Front

What is the formula to calculate the sum of interior angles of a polygon with n sides?

Back

Front

What is the measure of one interior angle of a regular polygon with n sides?

Back

Front

Find the measure of the missing angle if the other angles are 90° and 50°.

Back

The missing angle is 50°.

Front

What is the measure of one interior angle of a regular 45-gon?

Back

172°

Front

A polygon with 10 sides is called a(n) __________________.

Back

decagon

Front

What is the measure of the exterior angle of a regular polygon with n sides?

Back

Front

If one interior angle of a regular polygon is 120°, how many sides does it have?

Back

It has 6 sides.

Front

What is the relationship between interior and exterior angles of a polygon?

Back

Interior angle + Exterior angle = 180°.