Complementary, Supplementary, and Vertical 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 are vertical angles?

Back

Angles that are opposite of each other when lines intersect.

Front

If one angle is 30°, what is its complement?

Back

60°.

Front

If one angle is 110°, what is its supplement?

Back

70°.

Front

What is the sum of complementary angles?

Back

90°.

Front

What is the sum of supplementary angles?

Back

180°.

Front

If two angles are vertical angles, what can we say about their measures?

Back

They are equal.

Front

Identify the angle pair: 45° and 45°.

Back

Complementary angles.

Front

Identify the angle pair: 120° and 60°.

Back

Supplementary angles.