Angle Pair Relationships with Algebra Expressions

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 relationship between vertical angles?

Back

Vertical angles are equal.

Front

What are adjacent angles?

Back

Angles that share a common side and vertex.

Front

What are alternate interior angles?

Back

Angles that are on opposite sides of a transversal and inside the two lines.

Front

What are same-side interior angles?

Back

Angles that are on the same side of the transversal and inside the two lines.

Front

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

Back

60 degrees.

Front

If two angles are supplementary and one angle measures 120 degrees, what is the measure of the other angle?

Back

60 degrees.

Front

What is the measure of angle JHG if m∠GHK = 80.5?

Back

m∠JHG = 161 degrees.

Front

If two angles are vertical angles, and one measures 45 degrees, what is the measure of the other angle?

Back

45 degrees.