Transversals

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 the lines are parallel?

Back

When the 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 the lines are parallel?

Back

When the lines are parallel, corresponding angles are congruent.

Front

What are consecutive interior angles?

Back

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

Front

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

Back

When the lines are parallel, consecutive interior angles are supplementary.

Front

If m∠L1 = 79°, what is m∠L2 if L1 and L2 are alternate exterior angles?

Back

m∠L2 = 79° because alternate exterior angles are congruent.

Front

If m∠L3 = 97°, what is m∠L6 if L3 and L6 are alternate interior angles?

Back

m∠L6 = 97° because alternate interior angles are congruent if the lines are parallel.

Front

What is a linear pair of angles?

Back

A linear pair of angles are two adjacent angles that form a straight line.