Parallel lines cut by a transversal

Front

What are parallel lines?

Back

Lines that never intersect and are always the same distance apart.

Front

What is a transversal?

Back

A line that crosses two or more other lines.

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 parallel lines.

Front

What are alternate exterior angles?

Back

Angles that are on opposite sides of the transversal and outside the parallel lines.

Front

What are consecutive interior angles?

Back

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

Front

What is the relationship between corresponding angles when two parallel lines are cut by a transversal?

Back

Corresponding angles are congruent.

Front

What is the relationship between alternate interior angles when two parallel lines are cut by a transversal?

Back

Alternate interior angles are congruent.

Front

What is the relationship between consecutive interior angles when two parallel lines are cut by a transversal?

Back

Consecutive interior angles are supplementary.

Front

If two lines are parallel, what can be said about the angles formed by a transversal?

Back

The angles formed will have specific relationships (congruent or supplementary) depending on their positions.