Angles and Intersecting Lines

What type of angle is this? 

• acute

• obtuse

• right

1. Find X 

• 28

• 5

• 55

• 40

2. FIND ∠SOR

• 45

• 135

• 90

• 180

Find the value of ∠A.

• 79 degrees

• 87 degrees

• 90 degrees

• 97 degrees

If m∠1 = 30°, then m∠3 = 

• 30°

• 60°

• 150°

• undetermined

Solve for x

• 17

• 12

• 14

• 5

• 80

• 40

• 30

• 20

• 10

• 32

• 60

• 40

• 32

b = ​ (a)  

Which are pairs of vertical angles?

• ∠COB & ∠COA

• ∠AOD & ∠AOC

• ∠COB & ∠AOD

• ∠BOD & ∠AOD