Parallel lines cut by a transversal vocabulary

Front

For alternate exterior angles to be congruent, the two lines must be _____________

Back

parallel

Front

If lines are parallel, then alternate interior angles are _____________

Back

congruent

Front

Name the angle relationship: Two angles that are on the same side of the transversal and inside the two lines.

Back

Same Side Interior

Front

Name the angle relationship: Two angles that are on opposite sides of the transversal and inside the two lines.

Back

Alternate Interior

Front

Name the angle relationship: Two angles that are on opposite sides of the transversal and outside the two lines.

Back

Alternate Exterior

Front

Name the angle relationship: Two angles that are on the same side of the transversal and outside the two lines.

Back

Same Side Exterior

Front

If two parallel lines are cut by a transversal, then corresponding angles are _____________

Back

congruent

Front

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

Back

They are supplementary.

Front

What do you call angles that are in the same position on two parallel lines cut by a transversal?

Back

Corresponding angles

Front

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

Back

The lines are parallel.