Parallel lines cut by a transversal

Front

What are parallel lines?

Back

Lines in a plane that never meet and are always the same distance apart.

Front

What is a transversal?

Back

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

Front

What are corresponding angles?

Back

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

Front

What is the relationship between corresponding angles when lines are parallel?

Back

Corresponding angles are congruent.

Front

What are alternate interior angles?

Back

Angles that lie between two lines and on opposite sides of a transversal.

Front

What is the relationship between alternate interior angles when lines are parallel?

Back

Alternate interior angles are congruent.

Front

What are alternate exterior angles?

Back

Angles that lie outside two lines and on opposite sides of a transversal.

Front

What is the relationship between alternate exterior angles when lines are parallel?

Back

Alternate exterior angles are congruent.

Front

What are same side interior angles?

Back

Angles that lie between two lines and on the same side of a transversal.

Front

What is the relationship between same side interior angles when lines are parallel?

Back

Same side interior angles are supplementary.