Parallel Lines cut by a transversal

Front

What are parallel lines?

Back

Lines in a plane that never meet and are always the same distance apart.

Front

What is a transversal?

Back

A line that crosses at least two other lines.

Front

What are corresponding angles?

Back

Angles that are in the same position on different parallel lines cut by a transversal.

Front

What are alternate interior angles?

Back

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

Front

What are alternate exterior angles?

Back

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

Front

What are consecutive interior angles?

Back

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

Front

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

Back

They are congruent.

Front

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

Back

They are congruent.

Front

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

Back

They are supplementary (add up to 180°).

Front

If angle 1 is 60 degrees, what is the measure of angle 2 if angle 1 and angle 2 are corresponding angles?

Back

Angle 2 is also 60 degrees.