Interior/ Exterior Angles

What is the SUM of the angle measures in a nonagon (9 sides)?

• 1440°
• 900°
• 1080°
• 1260°

Find the value of X.

• 100
• 120
• 125
• 130

Find the measure of one interior angle in each regular polygon. Round your answer to the

nearest tenth if necessary.

• A

• B

• C

• D

Find the measure of one interior angle in each regular polygon. Round your answer to the

nearest tenth if necessary.

• A

• B

• C

• D

Find the value of X.

• 100° 
• 110° 
• 150° 
• 168° 

Find the interior angle sum for each polygon. Round your answer to the nearest tenth if

necessary.

• A

• B

• C

• D

What is the sum of interior angles for a 16-gon?

• 2880
• 2520
• 1600
• 157.5

What is the measure of a single exterior angle for a regular pentagon?

• 360
• 108
• 72
• 36

Solve for x

• 80
• 110
• 17
• 60

Solve for x

• 45
• 12
• 90
• 2