Complementary, Supplementary & Vertical Angles

Front

What are complementary angles?

Back

Two angles that add up to 90 degrees.

Front

What are supplementary angles?

Back

Two angles that add up to 180 degrees.

Front

What are vertical angles?

Back

Angles that are opposite of each other when lines intersect.

Front

True or False: Vertical angles are always congruent.

Back

True.

Front

Identify the pairs of vertical angles: ∠COB and ∠AOD, ∠AOD and ∠BOD, ∠COA and ∠COB.

Back

∠COB and ∠AOD.

Front

If two angles are supplementary and one angle measures 37 degrees, what is the measure of the other angle?

Back

143 degrees.

Front

What is the relationship between adjacent angles?

Back

Adjacent angles share a common side and vertex.

Front

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

Back

They are equal (congruent).

Front

What is the sum of the measures of complementary angles?

Back

90 degrees.

Front

What is the sum of the measures of supplementary angles?

Back

180 degrees.