Complementary & Supplementary Angles

Front

What are complementary angles?

Back

Two angles that add up to 90°.

Front

What are supplementary angles?

Back

Two angles that add up to 180°.

Front

What is the complement angle to 30°?

Back

60°

Front

What is the supplement angle to 60°?

Back

120°

Front

If angle A is 70°, what is the complement of angle A?

Back

20°

Front

If angle B is 110°, what is the supplement of angle B?

Back

70°

Front

What do you call two angles that share a common vertex and side?

Back

Linear pair.

Front

If two angles are supplementary and one angle measures 80°, what is the measure of the other angle?

Back

100°

Front

What is the relationship between complementary angles?

Back

They are always acute angles.

Front

If angle C is 45°, what is the supplement of angle C?

Back

135°