Triangle Sum/Exterior Angle Theorem Quiz

Find the measure of the indicated angle.

Find the measure of the indicated angle.

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

• 45°
• 90°
• 180°
• 360°

The angles inside an equilateral triangle are all ...

• 20 degrees

• 50 degrees

• 60 degrees

• 45 degrees

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°

Solve for x.

• 6
• 5
• -11
• 4

Solve for the missing angle with the question mark. 

• A
• B
• C
• D

Which of the following terms best describes Angle d?

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

What is the value of the missing angle?

• 90

• 100

• 20

• 120

What is the value of the missing angle?

• 105

• 80

• 55

• 25