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 at each intersection where a transversal crosses two lines.

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

Define 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 parallel lines and corresponding angles?

Back

If two parallel lines are cut by a transversal, then each pair of corresponding angles is equal.

Front

What is the relationship between parallel lines and alternate interior angles?

Back

If two parallel lines are cut by a transversal, then each pair of alternate interior angles is equal.

Front

What is the relationship between parallel lines and consecutive interior angles?

Back

If two parallel lines are cut by a transversal, then each pair of consecutive interior angles are supplementary (add up to 180 degrees).

Front

Back