Parallel Lines Cut by a Transversal Vocabulary

Front

What are alternate exterior angles?

Back

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

Front

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

Back

Corresponding angles are equal.

Front

What is the angle relationship of vertical angles?

Back

Vertical angles are equal and are formed by two intersecting lines.

Front

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

Back

parallel

Front

What are same side interior angles?

Back

Angles that are on the same side of the transversal and between the two lines.

Front

Identify the pair of angles that are alternate exterior angles: Angle 7 and Angle 4, Angle 2 and Angle 6, Angle 8 and Angle 1, Angle 2 and Angle 8.

Back

Angle 8 and Angle 1.

Front

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

Back

Same side interior angles are supplementary.

Front

What do you call angles that are formed on opposite sides of the transversal and inside the two lines?

Back

Alternate interior angles.

Front

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

Back

They are congruent.

Front

What is the sum of the measures of same side interior angles?

Back

180 degrees.