Parallel Lines & Transversals

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 crosses at least two other lines.

Front

What are corresponding angles?

Back

Angles that are in the same position on two 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 supplementary angles?

Back

Two angles that add up to 180 degrees.

Front

What are congruent angles?

Back

Angles that have the same measure.

Front

If angle 1 = 27°, what is the measure of angle 2 if they are corresponding angles?

Back

Angle 2 = 27°.

Front

If angle 3 = 90°, what is the measure of angle 4 if they are alternate exterior angles?

Back

Angle 4 = 90°.

Front

What is the relationship between angles on a straight line?

Back

They are supplementary and add up to 180 degrees.

Front

If angle C and angle P are supplementary, what is the sum of their measures?

Back

The sum is 180 degrees.