Finding Missing Complementary and Supplementary Angles

What is an example of a pair of complementary angles?

• 13° and 45°

• 10° and 170°

• 81° and 9°

• 90° and 3°

Supplementary angles always add up to

Complementary angles always add up to

• x = 118

• x = 108

• x = 28

• x = 58

• x = 62

Find the missing angle.  Find x.

• 20^o

• 70^o

• 160^o

• 180^o

Two angles are suppplementary if the sum of their angles is 180^o

• True

• False

Complementary angles are angles that add up to ___________. 

• 180 degrees

• 90 degrees

• 360 degrees

• 100 degrees

What is the measure of ∠2?

• 38

• 58

• 71

• 142

Find the missing angle.

• 74

• 66

• 35

• 16