Angles: Complementary, Supplementary, and Vertical

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 are vertical angles?

Back

Angles that are opposite each other when two lines intersect.

Front

If two angles are supplementary, what is their sum?

Back

180°.

Front

If two angles are complementary, what is their sum?

Back

90°.

Front

What is the equation for finding the measure of an angle that is twice its complement?

Back

Front

If one angle measures 60°, what is the measure of its supplementary angle?

Back

120°.

Front

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

Back

60°.

Front

What are adjacent angles?

Back

Angles that share a common side and a common vertex.

Front

If two angles are vertical angles, what can be said about their measures?

Back

They are equal.