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 intersects two or more lines at different points.

Front

Define alternate exterior angles.

Back

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

Front

Define alternate interior angles.

Back

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

Front

What are corresponding angles?

Back

Angles that are in the same position on two different lines cut by a transversal.

Front

What are vertical angles?

Back

Angles that are opposite each other when two lines intersect.

Front

If angle 1 is 135 degrees, what is the measure of angle 7 if they are alternate exterior angles?

Back

135 degrees.

Front

If angle 1 is 135 degrees, what is the measure of angle 3 if they are corresponding angles?

Back

135 degrees.

Front

What is the relationship between angles ∠SUV and ∠XUT if they are vertical angles?

Back

They are equal in measure.

Front

What is the relationship between angles ∠SUV and ∠VUX if they are supplementary angles?

Back

Their measures add up to 180 degrees.