Missing Part of an Angle

Find the missing angle.  Find x.

• 20^o

• 70^o

• 160^o

• 180^o

Q1. What is the angle of a right triangle?

• A) 135°

• B) 145°

• C) 35°

• D) 45°

Set up an equation that will help you solve for x.

• 60 + 75 + 180 = x

• 60 + 75 + x = 180

• 60 + 75 = x

• 60 + x = 75

Set up the equation to solve for x

• 8x + 2 +70 + 60 = 180

• 8x + 2 = 180

• 8x + 2 = 70 + 60

• 70 + 8x + 2 = 60

Using the picture, determine the measurement of all the missing angles.

Solve for x

• 5

• 90

• 25

• 10

Using the picture, determine the measurement of all the missing angles.

Using the picture, determine the measurement of all the missing angles.

What equation would you use to solve for the missing angle?

Using the picture, determine the measurement of all the missing angles.