Complementary and Supplementary Angles

Front

What is the definition of complementary angles?

Back

Two angles that add up to 90 degrees.

Front

What is the definition of supplementary angles?

Back

Two angles that add up to 180 degrees.

Front

If one angle measures 30 degrees, what is the measure of its complementary angle?

Back

60 degrees.

Front

If one angle measures 120 degrees, what is the measure of its supplementary angle?

Back

60 degrees.

Front

What is an example of a pair of complementary angles?

Back

30° and 60°.

Front

What is an example of a pair of supplementary angles?

Back

110° and 70°.

Front

What do you call angles that are next to each other and share a common side?

Back

Adjacent angles.

Front

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

Back

Vertical angles.

Front

If two angles are complementary, what is the sum of their measures?

Back

90 degrees.

Front

If two angles are supplementary, what is the sum of their measures?

Back

180 degrees.