Sum of Interior and Exterior Angles

What is the SUM of the angle measures in a DECAGON?

• 1440°

• 900°

• 1080°

• 1260°

What is the measure of the sum of the exterior angles of a regular pentagon?

• 540°

• 108°

• 360°

• 180°

What is the measure of the sum of the interior angles of a regular 20-gon?

• 180 degrees

• 360 degrees

• 3240 degrees

• 3600 degrees

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.

• 360

• 12.8

• 540

• 20

What is the sum of the interior angles of the hexagon shown?

• 180° 
• 540° 
• 720° 
• 1080° 

Find the value of y.

• 125
• 135
• 140
• 110

Find the value of X.

• 720

• 20

• 360

• 8

Find x.

• 120 degrees

• 210 degrees

• 211 degrees

• 121 degrees