Sum of the Interior Angles of a Polygon

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

• 1440°

• 900°

• 1080°

• 1260°

What is the sum of the interior angles for a      24-gon

• 3960

• 360

• 15

• 4280

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

necessary.

• A

• B

• C

• D

If the sum of the interior angles of a polygon equals 900°, how many sides does the polygon have? 

• 7

• 9

• 10

• 12

Find the sum of the interior angle measures of a convex 20-gon.

• 3240 degrees

• 3600 degrees

• 5400 degrees

• 3060 degrees

Find the sum of the interior of angles in a 12-gon

• 1800

• 1080

• 1620

• 1260

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

• 720°

• 1080°

• 600°

• 540°

Find the sum of the interior angles in a 15-gon

• 2000

• 2340

• 1875

• 1080

What is the sum of interior angles for a pentagon?

• 900

• 540

• 360

• 108

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

• 4860

• 4500

• 3700

• 2700