Sum of Angles in a Triangle and Exterior Angles

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

Find the size of the missing angle. 

• 33°

• 136°

• 36°

• 31°

Tags

CCSS.8.G.A.5

Find the size of the missing angle. 

• 140°

• 21°

• 105°

• 25°

Tags

CCSS.8.G.A.5

Find the size of the missing angle. 

• 139°

• 66°

• 138°

• 116°

Tags

CCSS.8.G.A.5

Find the size of the missing angle. 

• 40°

• 33°

• 30°

• 29°

Tags

CCSS.7.G.B.5

What is the size of angle b?

• 36^o

• 56^o

• 63^o

• 117^o

Tags

CCSS.8.G.A.5

Find the size of the missing angle. 

• 51°

• 37°

• 167°

• 41°

Tags

CCSS.8.G.A.5

Find the size of the missing angle. 

• 90

• 100

• 20

• 120

Tags

CCSS.8.G.A.5

Find the size of the missing angle. 

• 105

• 80

• 55

• 25

Tags

CCSS.8.G.A.5

What is the value of x?

• 38

• 57

• 76

• 85

Tags

CCSS.8.G.A.5