Finding Interior and Exterior Angles of Polygons

Solve for x

• 45

• 12

• 90

• 2

Find the measure of angle y.

• y=65°

• y=70°

• y=60°

• y=80°

What is the formula for finding the sum of the interior angles of a polygon?

• S= (n-2)180

• S= (n-180)2

• S= (n-2)180/n

• S= (n - 180)2/n

What is the sum of the exterior angles of a polygon?

• 180(n-2)

• 180

• (180(n-2))/n

• 360

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

• 3960

• 360

• 15

• 4280

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

Solve for x. 

• 100

• 120

• 125

• 130

• 94

• 124

• 90

Find the measure of the angle x.

• 105

• 115

• 65

• 75

Solve for the missing variable.

• 255°

• 90°

• 60°

• 105°