Interior and Exterior Angle Sum of Polygons

What is the SUM of the angle measures in a triangle (3 sides)?

• 60°

• 90°

• 120°

• 180°

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

• 3960

• 360

• 15

• 4280

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

• 1440°

• 900°

• 1080°

• 1260°

How do you find the sum of the exterior angles of a polygon?

• 180(n-2)

• 180

• (180(n-2))/n

• 360

Solve for x.

• 80

• 110

• 17

• 60

Solve for x

• 45

• 12

• 90

• 2

What is the sum of the exterior angles of a 20-gon?

• 180

• 360

• 3240

• 162

The sum of 5 angles of a hexagon is 600^o.  What is the measure of the 6th angle?

• 90^o

• 120^o

• 100^o

• 60^o

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

• 60°

• 80°

• 108°

• 120°

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

• 720° 

• 900° 

• 1080° 

• 1260°