Parallel Lines and 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 crosses at least two other lines in the same plane.

Front

What are corresponding angles?

Back

Angles that are in the same position at each intersection where a transversal crosses two lines.

Front

What are alternate interior angles?

Back

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

Front

What are same-side interior angles?

Back

Angles that are on the same side of the transversal and inside the two lines.

Front

What is the sum of the interior angles of a triangle?

Back

180 degrees.

Front

What is the supplement of an angle?

Back

The angle that, when added to the original angle, equals 180 degrees.

Front

If two parallel lines are cut by a transversal, what can be said about the alternate exterior angles?

Back

They are equal.

Front

If two angles are supplementary, what is their relationship?

Back

Their measures add up to 180 degrees.

Front

What is the value of x if the corresponding angle is 32 degrees?

Back

x = 32 degrees.