ch 3.3 interior angles of polygona

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 triangle (3 sides)?

• 60°
• 90°
• 120°
• 180°

Find the value of X.

• 100
• 120
• 125
• 130

Find the measure of each angle indicated. 

• 139°
• 66°
• 138°
• 116°

Find the measure of the missing angle

• 50°

• 35°

• 100°

• 55°

Find the value of x.

• 110

• 90

• 130

• 120

What is the sum of the interior angles of the nonagon shown?

• 720° 
• 900° 
• 1080° 
• 1260° 

What do the angles in an equilateral triangle measure?

• 30, 60, 90
• 45, 45, 90
• 60, 60, 60
• 35, 55, 90

The Triangle Sum Theorem states that the sum of all angles in a triangle is ______. 

• 45°
• 90°
• 180°
• 360°

Solve for x.

• -12
• -8
• -10
• -5