Missing Angles and Angle Relationships

Find the missing angle.  Find x.

• 20^o

• 70^o

• 160^o

• 180^o

Solve for angle 5

• 65

• 60

• 110

• 115

Solve for angle 5

• 20

• 35

• 120

• 145

What is the vertical angle to angle 4?

• Angle 2

• Angle 6

• Angle 8

• Angle 7

Find the missing angle.  Find x.

• 20^o

• 70^o

• 160^o

• 180^o

∠1 and ∠3 can best be described as -

• complementary angles

• supplementary angles

• vertical angles

• adjacent angles

Solve for x

• 5

• 90

• 25

• 10

How would you set up the equation to solve for x?

Hint: Are the two angles EQUAL to each other, or do they add up to 180?

• 33 = 7x +5

• -7x=33

• 33+7x+5=180

• 33+7x+5=90

Given the following two parallel lines cut by a transversal. Which pair of angles represents alternate interior angles?

If m∠1 = 30°, then m∠3 = 

• 30°

• 60°

• 150°

• undetermined