Pre - Test

Find the number of sides if the measure of the interior angles of a regular polygon is 108°.

• 5

• 6

• 7

• 8

The measures of the exterior angles of a convex quadrilateral, one at each vertex, are (6x)°, (4x – 10)°, (4x + 10)° and (2x + 40)°. What is the measure of the largest angle?

• 20°    

• 70°       

• 80°        

• 120°

A regular polygon has an exterior angle that measures 40°. How many sides does the polygon have?

• 7

• 8

• 9

• 10

The measure of an exterior angle of a regular polygon is 90⁰. Find the number of sides in the polygon.

• 3

• 4

• 5

• 6

The measure of an exterior angle of a regular polygon is 30⁰. Find the number of sides in the polygon.

• 9

• 10

• 11

• 12