Identifying Vertical Angles

Which are pairs of vertical angles?

• ∠COB & ∠COA
• ∠AOD & ∠AOC
• ∠COB & ∠AOD
• ∠BOD & ∠AOD

Which are pairs of adjacent angles?

• ∠COB & ∠DOA
• ∠AOD & ∠AOC
• ∠COB & ∠AOD
• ∠BOD & ∠AOC

Name the vertical angle to
∠h.

• ∠f
• ∠i
• ∠g
• ∠j

Which names a pair of adjacent angles?

• ∠CXD and ∠FXE
• ∠CXF and ∠DXE
• ∠CXD and ∠DXE

What angle pair is pictured?

• Alternate Interior Angles
• Supplementary Angles
• Vertical Angles
• Corresponding Angles

Find the missing angle.  Find x.

• 20^o
• 70^o
• 160^o
• 180^o

Vertical angles are always

• acute
• total 180 degrees
• congruent (equal measures)
• adjacent angles

What is the value of x?

• 37
• 72
• 108
• 18

Find the value of x.

• 14
• 60
• 35
• 180

What does X equal?

• X=51
• X=45
• X=39