Solving Missing Angles Complementary and Supplementary

What is the measure of angle A?

• 30^o

• 80^o

• 75^o

• 60^o

What is the measure of ∠CAD?

• 30^o

• 90^o

• 60^o

• 45^o

What is the measure of angle A?

• 45^o

• 160^o

• 30^o

• 35^o

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

Which are pairs of adjacent angles?

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

If ∠COB is 124°, then what is ∠BOD? How are they related?

• 56°, they are supplementary
• 90°, they are complementary
• 124°, they are vertical

Find the missing angle.  Find x.

• 20^o
• 70^o
• 160^o
• 180^o

AngleA and AngleB are considered.....

• Obtuse
• Straight
• Adjacent
• Supplementary

 Complementary angles measures _____ degrees.

• 45
• 180
• 90
• 30