Interior Angles of Triangles Practice

What is the sum of the interior angles of a triangle?

• 90 degrees

• 270 degrees

• 360 degrees

• 180 degrees

Tags

CCSS.8.G.A.5

If one angle of a triangle measures 60 degrees and another angle measures 80 degrees, what is the measure of the third angle?

• 70

• 90

• 50

• 40

Tags

CCSS.8.G.A.5

If the measure of one angle of a triangle is 45 degrees and the measure of another angle is 75 degrees, what is the measure of the third angle?

• 90

• 60

• 120

• 30

Tags

CCSS.8.G.A.5

If the measure of one angle of a triangle is 30 degrees and the measure of another angle is 50 degrees, what is the measure of the third angle?

• 80

• 120

• 100

• 60

Tags

CCSS.8.G.A.5

If the measure of one angle of a triangle is 90 degrees and the measure of another angle is 45 degrees, what is the measure of the third angle?

• 180

• 90

• 135

• 45

Tags

CCSS.8.G.A.5

If the measure of one angle of a triangle is 120 degrees and the measure of another angle is 30 degrees, what is the measure of the third angle?

• 120

• 60

• 90

• 30

Tags

CCSS.8.G.A.5

If the measure of one angle of a triangle is 60 degrees and the measure of another angle is 60 degrees, what is the measure of the third angle?

• 120

• 30

• 60

• 90

Tags

CCSS.8.G.A.5

If the measure of one angle of a triangle is 100 degrees and the measure of another angle is 50 degrees, what is the measure of the third angle?

• 50

• 30

• 100

• 80

Tags

CCSS.8.G.A.5

If the measure of one angle of a triangle is 75 degrees and the measure of another angle is 45 degrees, what is the measure of the third angle?

• 60

• 120

• 90

• 30

Tags

CCSS.8.G.A.5

If the measure of one angle of a triangle is 110 degrees and the measure of another angle is 40 degrees, what is the measure of the third angle?

• 30

• 50

• 90

• 70

Tags

CCSS.8.G.A.5