Triangle Sum & Exterior Angles Theorems

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

• 180

• 360

• 270

• 90

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?

• 40

• 90

• 120

• 20

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?

• 120

• 90

• 30

• 60

Tags

CCSS.8.G.A.5

Find the measure of the indicated angle.

Tags

CCSS.8.G.A.5

Find the measure of the indicated angle.

Tags

CCSS.8.G.A.5

A student is trying to construct triangles using four different sets of angles. The angles in each set are given below. Which set will form a triangle?

• 45°, 65°, 70°

• 150°, 110°, 100°

• 50°, 50°, 50°

• 90°, 90°, 90°

Tags

CCSS.8.G.A.5

Solve for x.

• 16
• 11
• 50
• 6

Tags

CCSS.8.G.A.5

Solve for x.

• 6
• 5
• -11
• 4

Tags

CCSS.8.G.A.5

Which of the following terms best describes Angle d?

• Remote interior angle
• Corresponding angle
• Exterior angle
• Interior angle

Tags

CCSS.7.G.B.5

Which two angles are the remote interior angles to Angle A?

• Angle C and Angle B

• Angle D and Angle B

• Angle C and Angle D

• Angle B and Angle A

Tags

CCSS.8.G.A.5