Angle Relationships and Missing Angles

Which are pairs of adjacent angles?

• ∠COB and ∠DOA

• ∠AOD and ∠AOC

• ∠COB and ∠AOD

• ∠BOD and ∠AOC

Which are pairs of vertical angles?

• ∠COB and ∠COA

• ∠AOD and ∠AOC

• ∠COB and ∠AOD

• ∠BOD and ∠AOD

Vertical angles are always

• acute

• total 180 degrees

• congruent (equal measures)

• adjacent angles

What relationship exists between angles 2 and 3

• Corresponding angles

• Supplementary angles

• Vertical angles

• Alternate Exterior Angles

Name a pairs of vertical angles in the figure.

• ∠1 and ∠4

• ∠6 and ∠5

• ∠2 and ∠4

• ∠1 and ∠6

What angle pair is pictured?

• Alternate Interior Angles

• Supplementary Angles

• Vertical Angles

• Corresponding Angles

Find the missing angle.

• 60°

• 70°

• 50°

• 140

complementary, supplementary, or neither?

• Complementary

• Supplementary

• Neither

Which Angles are Vertical Angles?

Calculate the missing angle