Internal Angles

What do the angles in an equilateral triangle measure?

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

Find the measure of each angle indicated. 

• 33°
• 136°
• 36°
• 31°

Find the measure of each angle indicated. 

• 140°
• 21°
• 105°
• 25°

What is the measure of angle b?

• 36^o
• 56^o
• 63^o
• 117^o

Solve for x.

• 16
• 11
• 50
• 6

Solve for x.

• -12
• -8
• -10
• -5

Find the value of X.

• 100
• 120
• 125
• 130

Find the value of X.

• 100° 
• 110° 
• 150° 
• 168° 

What are vertical angles?

• Angles that are adjacent to each other
• Angles that add up to 180°
• Angles that are opposite of each other when lines intersect
• Angles that add up to 90°

• 100°
• 80°
• 90°
• 180°