Polygons with Interior and Exterior Angles

Find the measure of the angle x.

• 105

• 115

• 65

• 75

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

• 14°

• 15°

• 17°

• 18°

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

• 180

• 360

• 3240

• 162

Calculate the sum of the interior angle measures of a polygon with 25 sides.

• 360 degrees

• 4500 degrees

• 335 degrees

• 4140 degrees

Find the value of x

• 141

• 150

• 135

• 163

Find the value of X.

• 60

• 120

• 85

• 55

Find the value of X.

• 100° 

• 110° 

• 150° 

• 168° 

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

• 90°

• 108°

• 120°

• 180°

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

• 60°

• 80°

• 108°

• 120°

The sum of the exterior angles of a polygon is __________________ where n is the number of sides.

• 360

• n

• (n - 2)180

• (n - 1)180