Polygon Interior and Exterior Angle Sum

Solve for x.

• 80

• 110

• 17

• 60

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

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

• 3240 degrees

• 3600 degrees

• 5400 degrees

• 3060 degrees

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 formula to find the sum of the interior angles of any polygon?

• ^{(n - 2)360}

• 180n

• (n-2)180

• ((n-2)180)/n

• 360/n

What is the formula to find one exterior angle in a regular polygon?

• 360/n

• (n-2)180

• it's always 360^o

• 180/n

• ((n-2)180)/n