Exterior and Interior Angles of Polygons

How do the interior and exterior angles of a polygon relate?

• They are complementary

• They are congruent

• They are supplementary

• They have no relationship

The following polygon is a Regular Pentagon. Find the measure of EACH EXTERIOR angle of the polygon.

• 50°

• 55°

• 72°

• 355°

What is the SUM of the angle measures in a DECAGON (10 sides)?

• 1440°

• 900°

• 1080°

• 1260°

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

• 90°

• 108°

• 120°

• 180°

What is the measure of ONE interior angle of a regular 20-gon?

• 90

• 146

• 162

• 122

What is the sum of exterior angles of a pentagon?

• 180

• 360

• 540

• 760

Find the value of x

• 141

• 150

• 135

• 163

Find the value of X.

• 100° 

• 110° 

• 150° 

• 168° 

The sum of the exterior angles of a polygon is __________________ where n is the number of sides.

• 360

• n

• (n - 2)180

• (n - 1)180

What is the sum of interior angles for a 27-gon?

• 4860

• 4500

• 3700

• 2700