Parallel Lines Cut by a Transversal

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

If angle 1 measures 127°, what is the measure of angle 2 if they are alternate interior angles?

Back

Angle 2 measures 127°.

Front

What is the measure of angle C if it is given that m∠C = 116°?

Back

m∠C = 116°.

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 vertical angles?

Back

Vertical angles are congruent.

Front

If two angles are consecutive interior angles, what is their relationship?

Back

Consecutive interior angles are supplementary.

Front

What do we call angles that are on opposite sides of the transversal and outside the two parallel lines?

Back

These are called alternate exterior angles.

Front

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

Back

Alternate exterior angles are congruent.

Front

What is the sum of the measures of consecutive interior angles?

Back

The sum is 180°.

Front

If angle 3 is 52°, what is the measure of angle 4 if they are alternate interior angles?

Back

Angle 4 measures 52°.