Polygon Angle Sums

Find the sum of the interior angles of a nonagon.

• 1260

• 900

• 1620

• 180

What is the SUM of the angle measures in a 35-gon?

• 180°

• 5940°

• 1080°

• 169.71°

A polygon's interior angles add up to 2700.  How many sides does the polygon have?

• 17

• 15

• 19

• 11

Solve for x:

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

• 36

• 10

• 18

• 40

Solve for x. 

• 100

• 120

• 125

• 130

Find the measure of one interior angle in regular 25-gon. Round your answer to the nearest tenth if necessary.

• 164.3⁰

• 167.1⁰

• 165.6⁰

• 166.7⁰

What is the sum of the measures of the exterior angles of a decagon?

• 1440⁰

• 360⁰

• 144⁰

• 1800⁰

What is the measure of each exterior angle in a regular polygon with 20 sides?

• 18°

• 20°

• 90°

• 10°

Solve for x.

• 900⁰

• 27⁰

• 35⁰

• 21⁰