Triangle Angle Sums Challenge Problems

A triangle has angle measurements of 75°, 75°, and 30°. What kind of triangle is it?

• equilateral

• isosceles

• scalene

• obtuse

Tags

CCSS.4.G.A.2

One angle of a right triangle measures 70°. What is the measure of the other angle?

• 90°

• 110°

• 30°

• 20°

Tags

CCSS.8.G.A.5

Which sets of angle measurements can form a triangle?

(Hint: check two boxes)

• 57°, 52°, 71°

• 68°, 115°, 22°

• 36°, 118°, 26°

• 65°, 25°, 89°

Tags

CCSS.8.G.A.5

What is the measure of the missing angle?

• 41

• 81

• 139

• 141

Tags

CCSS.8.G.A.5

The measure of angle x is:

(Hint: the answer contains a decimal)

(a)  

Tags

CCSS.8.G.A.5

What is the missing angle ?

(a)  

Tags

CCSS.8.G.A.5

What is the measure of angle B?

(Hint: what is the value of x?)

• 30

• 45

• 55

• 90

• 120

Tags

CCSS.HSG.CO.C.11