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 alternate exterior angles?

Back

Angles that are on opposite sides of the transversal and outside 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

If angle 6 is 25 degrees, what is angle 7 if they are same-side interior angles?

Back

Angle 7 is 155 degrees.

Front

What is the relationship between alternate interior angles?

Back

They are equal when the lines are parallel.

Front

If angle 4 is 90 degrees, what is the measure of angle 8?

Back

Angle 8 is also 90 degrees because they are corresponding angles.

Front

What is the sum of the interior angles on the same side of a transversal?

Back

The sum is 180 degrees.

Front

If angle 2 is 45 degrees, what is angle 6 if they are alternate interior angles?

Back

Angle 6 is also 45 degrees.

Front

What is the value of x if angle 3 is 135 degrees and angle 4 is x?

Back

x = 45 degrees.