Polygon Practice Exterior & Interior angle Theorem

What is the sum of the interior angles of a triangle ?

• 90 degrees

• 270 degrees

• 180 degrees

• 360 degrees

If the sum of the interior angles of a convex polygon is 1080 degrees,

how many sides does the polygon have ?

• 10

• 12

• 6

• 8

What is the measure of each interior angle of a regular octagon ?

• 120 degrees

• 135 degrees

• 90 degrees

• 150 degrees

What is the sum of the interior angles of a convex quadrilateral ?

• 180

• 360

• 270

• 90

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

• 60°
• 80°
• 108°
• 120°

What is the SUM of the angle measures in a hexagon (6 sides)?

• 720°
• 1080°
• 600°
• 540°

What is the measure of each exterior angle of a regular dodecagon (12-sided polygon)?

• 30 degrees

• 45 degrees

• 60 degrees

• 15 degrees

Find the measure of ONE exterior angle of a regular decagon.

• 36
• 10
• 18
• 40

Match the following

• Each (one) exterior angle

• 
• Each (one) interior angle

• 
• sum of exterior angles

• 
• Sum of interior angle

• 

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

necessary.

• A

• B

• C

• D