Angle Theorems

Front

What are supplementary angles?

Back

Two angles that add up to 180 degrees.

Front

What are complementary angles?

Back

Two angles that add up to 90 degrees.

Front

What does it mean if angle pairs are congruent?

Back

They are equal; have the same measurement.

Front

What are corresponding angles?

Back

Angles that are in the same position on different parallel lines cut by a transversal.

Front

What are alternate interior angles?

Back

Angles that are on opposite sides of the 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 supplementary and one angle measures 141 degrees, what is the measure of the other angle?

Back

39 degrees.

Front

If two angles are complementary and one angle measures 62 degrees, what is the measure of the other angle?

Back

28 degrees.

Front

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

Back

180 degrees.

Front

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

Back

90 degrees.