Find the Measure of Interior Angles of a Polygon

Solve for x. 

• 100

• 120

• 125

• 130

What is the measure of ONE interior angle in a regular pentagon (5-sides)?

• 90°

• 108°

• 120°

• 180°

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

• 1440°

• 900°

• 1080°

• 1260°

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

• 60°
• 80°
• 108°
• 120°

Find the value of X.

• 100

• 120

• 125

• 130

Which formula is used to find the sum of the interior angles of a polygon?

• 180

• 360

• (n-2)180

• n(n-3)/2

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

• 3960

• 360

• 15

• 4280

Solve for x. 

• 12

• 10

• 25

• 5

Find the value of X.

• 60

• 120

• 85

• 55

What is the SUM of the INTERIOR angles of a 12-gon?

• 3600

• 1800

• 2160

• 12