Identify Vertical Angle Pair

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°

Which are pairs of vertical angles?

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

Name the vertical angle to
∠h.

• ∠f
• ∠i
• ∠g
• ∠j

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

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 are supplementary angles?

• Angles that add up to 180°

• Angles that add up to 90°

• Angles that are equal to each other

• Angles that are opposite of each other when lines intersect