Complementary, Supplementary, Vertical, and Adjacent Angles

Front

What are complementary angles?

Back

Angles that add up to 90°.

Front

What are supplementary angles?

Back

Angles that add up to 180°.

Front

What are vertical angles?

Back

Angles that are opposite each other when two lines intersect.

Front

What are adjacent angles?

Back

Angles that share a common side and a common vertex.

Front

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

Back

60°.

Front

If two angles are supplementary and one measures 120°, what is the measure of the other angle?

Back

60°.

Front

Are 45° and 45° complementary, supplementary, or neither?

Back

Complementary.

Front

Are 70° and 110° complementary, supplementary, or neither?

Back

Supplementary.

Front

What is an example of a pair of complementary angles?

Back

81° and 9°.

Front

What is an example of a pair of supplementary angles?

Back

100° and 80°.