Interior & Exterior Angles of Polygons

What is the measure of each exterior angle of a regular 20-gon?

If the exterior angle of a regular polygon measures 9 degrees, how many sides does the polygon have?

Find the value of x.

Solve for x.

If the figure in this picture is a regular polygon, find the value of x.

Find the value of x.

Find the value of X.

• 100° 

• 110° 

• 150° 

• 168° 

Solve for x. 

• 12

• 10

• 25

• 5

What is the sum of exterior angles in a polygon?

• 180(n−2)

• 180(n−2)÷n

• 360

• 360/n

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

• 180(n−2)

• 180(n−2)÷n

• 360

• 360/n