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

What are corresponding angles?

Back

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

Front

What are alternate interior angles?

Back

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

Front

What are alternate exterior angles?

Back

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

Front

What are vertical angles?

Back

Angles that are opposite each other when two lines intersect; they are always congruent.

Front

If angle 5 is 70 degrees, what is the measure of angle 4 if they are corresponding angles?

Back

Angle 4 is also 70 degrees.

Front

If angle 2 is 127 degrees, what is the measure of angle 6 if they are alternate interior angles?

Back

Angle 6 is also 127 degrees.

Front

What is the relationship between angle 1 and angle 5 if they are vertical angles?

Back

Angle 1 is congruent to angle 5.

Front

If angle 8 is 52 degrees, what is the measure of angle 4 if they are corresponding angles?

Back

Angle 4 is also 52 degrees.