Angle Basics Identification

Front

Supplementary angles always add up to

Back

180

Front

Which are pairs of vertical angles?

Back

∠COB and ∠AOD

Front

Complementary angles always add up to

Back

90

Front

Vertical angles are always

Back

congruent (equal measures)

Front

What angle is vertical to angle 2?

Back

∠5

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 is the definition of vertical angles?

Back

Angles that are opposite each other when two lines intersect.

Front

If ∠A and ∠B are supplementary, and ∠A = 70°, what is ∠B?

Back

110

Front

If ∠C and ∠D are complementary, and ∠C = 30°, what is ∠D?

Back

60