Parallel Lines and Transversals

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

Define 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 lines.

Front

Define 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

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

Back

They are equal.

Front

If angle 1 = 27°, what is the measure of angle 4 if the lines are parallel?

Back

27°.

Front

If angle 3 and angle 6 are alternate interior angles, what can be said about their measures?

Back

They are equal.

Front

What is the relationship between alternate exterior angles when two lines are parallel?

Back

They are equal.