transversal

Front

What is a transversal?

Back

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

Front

What are alternate interior angles?

Back

Alternate interior angles are pairs of 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

When lines are parallel, alternate interior angles are congruent.

Front

What are corresponding angles?

Back

Corresponding angles are pairs of angles that are in the same position on two different lines cut by a transversal.

Front

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

Back

When lines are parallel, corresponding angles are congruent.

Front

What are alternate exterior angles?

Back

Alternate exterior angles are pairs of 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

When lines are parallel, alternate exterior angles are congruent.

Front

What are consecutive interior angles?

Back

Consecutive interior angles are pairs of angles that lie between two lines on the same side of a transversal.

Front

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

Back

When lines are parallel, consecutive interior angles are supplementary.

Front

If two lines are cut by a transversal and the alternate interior angles are equal, what can be concluded about the lines?

Back

The lines are parallel.