Sum of the Interior Angles of a Triangle

What do the angles in an equilateral triangle measure?

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

Tags

CCSS.8.G.A.5

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

• 45°
• 90°
• 180°
• 360°

Tags

CCSS.8.G.A.5

The Triangle Sum Theorem deals with _______ of a triangle

• angles
• sides

Tags

CCSS.8.G.A.5

Find the measure of each angle indicated. 

• 33°
• 136°
• 36°
• 31°

Tags

CCSS.8.G.A.5

Find the measure of each angle indicated. 

• 140°
• 21°
• 105°
• 25°

Tags

CCSS.8.G.A.5

Find the measure of each angle indicated. 

• 139°
• 66°
• 138°
• 116°

Tags

CCSS.8.G.A.5

Find the measure of each angle indicated. 

• 50°
• 35°
• 100°
• 55°

Tags

CCSS.8.G.A.5

Find the measure of each angle indicated. 

• 40°
• 33°
• 30°
• 29°

Tags

CCSS.7.G.B.5

What is the measure of angle BAC?

• 40
• 30
• 35
• 45

Tags

CCSS.8.G.A.5

Find the measure of each angle indicated. 

• 139°
• 66°
• 138°
• 116°

Tags

CCSS.8.G.A.5