Complementary and Supplementary Angles

Front

What are supplementary angles?

Back

Angles that add up to 180°.

Front

What are complementary angles?

Back

Angles that add up to 90°.

Front

What is the sum of two complementary angles?

Back

90°.

Front

What is the sum of two supplementary angles?

Back

180°.

Front

If one angle is 30°, what is the measure of its supplementary angle?

Back

150°.

Front

If one angle is 40°, what is the measure of its complementary angle?

Back

50°.

Front

Are two angles that measure 70° and 110° complementary, supplementary, or neither?

Back

Supplementary.

Front

Are two angles that measure 45° and 45° complementary, supplementary, or neither?

Back

Complementary.

Front

What do you call angles that are equal to each other?

Back

Congruent angles.

Front

What do you call angles that are opposite each other when two lines intersect?

Back

Vertical angles.