Finding the Missing Angle Measure

Find the missing angle.

• 28

• 32

• 60

• 38

What is the value of "a"?

• 45

• 55

• 35

• 65

Find the missing angle.

• 53

• 67

• 77

• 43

What is the value of "a"?

• 75°

• 65°

• 55°

• 85°

Carrie needs to determine the missing angle measure.  Which of the following equations could Carrie use to determine x?

What equation could be used to solve for the missing angle measure?

• x + 19 = 180

• x + 19 = 19

• x + 19 = 60

• x + 19 = 90

Which equation would you use to solve for the missing angle measure?

• x + 115 = 180

• x + 115 = 90

• x + 115 = 115

• x + 115 = 270

Carrie needs to determine the missing angle measure.  Which of the following equations could Carrie use to determine x?

• 5

• 35

• 25

• 0

Solve for x

• 20

• 25

• 120

• 180