Interior Exterior Angles in a Polygon

A decagon has 10 sides , What is ONE interior angle ?

• 160

• 140

• 122

• 144

• 8

• 9

• 10

• 11

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

• 3960

• 360

• 15

• 4280

Find the value of X.

• 100

• 120

• 125

• 130

Find the value of X

• 94

• 25

• 36

• 180

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

• 90

• 146

• 162

• 122

What is the sum of the exterior angles of an octagon?

• 240

• 360

• 180

• 1080

The sum of the interior angles of a polygon is 1620°.  How many sides does the polygon have?

• 8

• 11

• 3

• 16

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

• 14°

• 15°

• 17°

• 18°