Angles at a Point, Vertical Angles, Adjacent Angles

Which are pairs of vertical angles? Select all that apply.

• ∠COB & ∠COA

• ∠AOD & ∠AOC

• ∠COB & ∠AOD

• ∠BOD & ∠AOD

• ∠DOB & ∠COA

Which are pairs of adjacent angles? Select all that apply.

• ∠COB & ∠DOA

• ∠AOD & ∠AOC

• ∠COB & ∠AOD

• ∠BOD & ∠AOD

• ∠COB & ∠COA

Name the vertical angle to
∠h.

• ∠f
• ∠i
• ∠g
• ∠j

What angle pair is pictured?

• Alternate Interior Angles

• Supplementary Angles

• Vertical Angles

• Complementary Angles

Find the missing angle.  Find x.

• 20^o
• 70^o
• 160^o
• 180^o

What is the value of x?

• 37
• 72
• 108
• 18

Find the value of x.

• 14
• 60
• 35
• 180

Find the value of x?

• 16

• 148

• 68

• 32

What are vertical angles?

• Angles that are adjacent to each other
• Angles that add up to 180°
• Angles that are opposite of each other when lines intersect
• Angles that add up to 90°

Vertical angles are always

• 90 degrees

• 180 degrees

• congruent

• adjacent