Parallel Lines & Transversal Vocabulary

Front

If lines are parallel, then Corresponding angles are _____________

Back

congruent

Front

Which pair of angles are alternate exterior angles?

Back

Angle 8 and Angle 1

Front

Two lines in the same place that never intersect are called _____________.

Back

Parallel

Front

Which angle pair is shown in the picture?

Back

Same Side Interior Angles

Front

Angles which add up to 180° are called _____

Back

Supplementary Angles

Front

What is a transversal?

Back

A line that intersects two or more lines at different points.

Front

What are vertical angles?

Back

Angles that are opposite each other when two lines intersect; they are always congruent.

Front

What are alternate interior angles?

Back

Angles that lie between two lines and on opposite sides of a transversal; they are congruent if the lines are parallel.

Front

What are same side interior angles?

Back

Angles that lie between two lines and on the same side of a transversal; they are supplementary if the lines are parallel.

Front

What is the relationship between parallel lines and corresponding angles?

Back

Corresponding angles are congruent when a transversal intersects parallel lines.