Supplementary and Complementary

Two angles whose sum of angle measures equals 180 degrees

• Supplementary Angles

• Obtuse Angle

• Complementary Angles

• Straight Angle

What is the measure of the missing angle?

• 76

• 86

• 166

• 156

What is the supplement of 12°?

• 78°

• 180°

• 168°

• 90°

Two angles whose sum of angle measures equals 90 degrees  

• Adjacent Angles 

• Complementary Angles

• Congruent Angles

• Supplementary Angles

Find the measure of the indicated angle. 

Identify each pair of angles as complementary, supplementary, or neither.

• complementary

• supplementary

• neither

Identify each pair of angles as complementary, supplementary, or neither.

• complementary

• supplementary

• neither

Identify each pair of angles as complementary, supplementary, or neither.

• complementary

• supplementary

• neither

Identify each pair of angles as complementary, supplementary, or neither.

• complementary

• supplementary

• neither

Find the value of x in each figure.

• 128

• 131

• 41

• 180