Vertical, Complementary, Supplementary, and Adjacent Angles

Front

What are vertical angles?

Back

Angles that are opposite of each other when lines intersect.

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 adjacent angles?

Back

Angles that share a common side and vertex.

Front

If one angle measures 70°, what is the measure of its complementary angle?

Back

20°.

Front

If one angle measures 110°, what is the measure of its supplementary angle?

Back

70°.

Front

What angle pair is formed when two lines intersect?

Back

Vertical angles.

Front

If two angles are supplementary and one measures 40°, what is the other angle?

Back

140°.

Front

If two angles are vertical angles and one measures 30°, what is the measure of the other angle?

Back

30°.

Front

What is the sum of the measures of two complementary angles?

Back

90°.