Finding Unknown Angle Measures

What is the vertical angle to angle 4?

• Angle 2

• Angle 6

• Angle 8

• Angle 7

Use the image to answer the question. What is the value of A?

• 121

• 125

• 19

• 9

• 5

• 35

• 25

• 0

Solve for x

• 5

• 90

• 25

• 10

Find the value of x.

• 14

• 60

• 35

• 180

Angle R is 155 degrees. What is the measure of angle M?

• A

• B

• C

• D

Use an algebraic equation to find the measures of both angles

• x = 3x - 20; 10° and 10°

• x + 3x - 20 = 90; 27.5° and 62.5°

• x + 3x - 20 = 180; 50° and 130°

• x + 3x - 20 = 180; 150° and 30°

The figure below is not drawn to scale. Find ∠m.