G 5-4 Parallel Lines Review Vocab and Finding Angle Measure

Front

What are parallel lines?

Back

Parallel lines are lines in a plane that never meet or intersect, no matter how far they are extended.

Front

What is a transversal?

Back

A transversal is a line that crosses at least two other lines in the same plane.

Front

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

Back

Corresponding angles are equal.

Front

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

Back

Alternate interior angles are equal.

Front

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

Back

Alternate exterior angles are equal.

Front

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

Back

Consecutive interior angles are supplementary (add up to 180°).

Front

If m∠4 = 20°, what is m∠7 when lines are parallel and cut by a transversal?

Back

m∠7 = 160°.

Front

If m∠1 = 98° and m∠2 = 40°, what is m∠9 when two transversals cut parallel lines?

Back

m∠9 = 140°.

Front

If m∠4 = 30°, what is m∠1 when lines are parallel and cut by a transversal?

Back

m∠1 = 150°.

Front

If m∠1 = 98° and m∠2 = 40°, what is m∠4 when two transversals cut parallel lines?

Back

m∠4 = 98°.