Interior Angles of Regular Polygons

Question 1a. Find the sum of the interior angles for the polygon.

• 
  $108\degree$

• $180\degree$

• $360\degree$

• $540\degree$

Answer explanation

Question 1b. Find the measure of one interior angle for the regular polygon.

• 
  $108\degree$

• $180\degree$

• $360\degree$

• $540\degree$

Answer explanation

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

• 90°
• 108°
• 120°
• 180°

What is the measure in degrees of an interior angle of a regular hexagon?

• 108^o

• 120^o

• 90^o

• 144^o

What is the measure in degrees of an interior angle of a regular nonagon?

• 135^o

• 150^o

• 144^o

• 140^o

What is the sum of interior angles for an octagon?

• 1440
• 1080
• 1800
• 135

Find the interior angle on a regular polygon with 45 sides...

• 9^o

• 8^o

• 171^o

• 172^o

What is a regular polygon?

• all side lengths are the same length

• all angles are the same (equal in measure)

• only some side lengths are the same

• all side lengths are different

• only some angles are the same

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

• 90°
• 108°
• 120°
• 180°

What is the SUM of the angle measures in a nonagon (9 sides)?

• 1440°
• 900°
• 1080°
• 1260°