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 in the same plane.

Front

What are corresponding angles?

Back

Angles that are in the same position on two 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 parallel lines.

Front

What are alternate exterior angles?

Back

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

Front

What are consecutive interior angles?

Back

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

Front

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

Back

They are equal.

Front

If angle A is 70 degrees, what is the measure of its corresponding angle?

Back

70 degrees.

Front

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

Back

180 degrees.

Front

If angle B measures 120 degrees, what is the measure of angle Q if they are alternate interior angles?

Back

120 degrees.