Parallel Lines & Transversal vocab

Front

What are parallel lines?

Back

Lines in the same plane that never intersect.

Front

What is a transversal?

Back

A line that intersects two or more 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

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

Back

They are equal.

Front

If angle 1 = 70°, what is the measure of angle 2 if angle 1 and angle 2 are corresponding angles?

Back

70°

Front

If angle 3 = 110°, what is the measure of angle 4 if angle 3 and angle 4 are alternate interior angles?

Back

110°

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°).