Polygon Test

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

• 180(n−2)

• 180(n−2)÷n

• 360

• 360/n

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

• 180(n−2)

• 180(n−2)÷n

• 360

• 360/n

An exterior angle of a regular polygon
measures 36°. How many sides does
the polygon have? 

• 10

• 5

• 14

• 9

Find the measure of one interior angle in regular 25-gon. Round your answer to the nearest tenth if necessary.

• 164.3⁰

• 167.1⁰

• 165.6⁰

• 166.7⁰

Solve for x. 

• 100

• 120

• 125

• 130

• 20 sides

• 21 sides

• 12 sides

• 180 sides

How do the interior and exterior angles of a polygon relate?

• They are complementary

• They are congruent

• They are supplementary

• They have no relationship

A polygon where the diagonals never leave the interior of the polygon.

• Concave

• Convex

• Irregular

What is the best description of the polygon?

• equilateral

• equiangular

• regular

• neither

Solve for x

• 45

• 12

• 90

• 2