Polygon Angle Quiz

Find the measure of ONE exterior angle of a regular decagon.

• 36
• 10
• 18
• 40

A polygon with six sides is called a(n) ______________.

• hexagon
• pentagon
• decagon
• septagon

A polygon with 8 sides is called a(n) __________________.

• octagon
• decagon
• heptagon
• dodecagon

Find the measure of angle E.

• 9
• 97°
• 48°
• 79°

Solve for x. 

• 100
• 120
• 125
• 130

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

• 90°
• 108°
• 120°
• 180°

Find the value of y.

• 125
• 135
• 140
• 110

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

• (n - 2)180
• (n - 1)180
• 360
• (n - 3)(180)

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

Find the value of X.

• 60
• 120
• 85
• 55