Parallel Lines and 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 in the same plane.

Front

What are corresponding angles?

Back

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

Back

Angles that are opposite each other when two lines intersect.

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 P measures 60 degrees, what is the measure of angle C if they are same-side interior angles?

Back

120 degrees.

Front

What is the sum of the measures of angles on a straight line?

Back

180 degrees.

Front

If angle 1 and angle 2 are supplementary, and angle 1 measures 38 degrees, what is the measure of angle 2?

Back

142 degrees.