Sum of Interior Angles

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

• 1440°
• 900°
• 1080°
• 1260°

What is the SUM of the angle measures in a hexagon (6 sides)?

• 720°
• 1080°
• 600°
• 540°

What is the SUM of the angle measures in a triangle (3 sides)?

• 60°
• 90°
• 120°
• 180°

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

• 90°
• 108°
• 120°
• 180°

What is the measure of ONE interior angle in a regular hexagon (6 sides)?

• 60°
• 80°
• 108°
• 120°

Find the angle Find the angle sum of the interior angles of the polygon. of the polygon.

• 720° 
• 900° 
• 1080° 
• 1260° 

What is the name of a 7 sided polygon?

• hexagon
• heptagon
• octagon
• nonagon

Find the missing angle.

• 75
• 85
• 100
• 45

Find the value of X

• 94
• 25
• 36
• 180

Find the value of X.

• 100
• 120
• 125
• 130