Complementary and Supplementary Angles, Using the Protractor

What is the definition of a complementary angle?

• Two angles that have the same measure

• A straight line that equals 180 degrees

• Two angles that measure 90 degrees

• Two angles that measure 180 degrees

What is the definition of a supplementary angle?

• Two angles that measure 180 degrees

• A right angle

• Two angles that measure 90 degrees

• Two angles that have the same measure

What is an example of a pair of complementary angles?

• 45° and 48°

• 79° and 30°

• 150° and 32°

• 36° and 54°

What kind of angles are shown?

• Complementary

• Supplementary

Find the missing angle.

• 45°

• 140°

• 50°

• 120°

Find the missing angle.

• 28°

• 118°

• 62°

• 180°

An angle measures 14°. What is the measure of the complementary angle?

• 76°

• 166°

• 14°

• 68°

What is the measure of the missing angle?

• 39

• 129

• 29

• 119

Each pair of vertically opposite angles are equals.

• True

• False