Parallel Lines Cut by A Transversal

Front

What are parallel lines?

Back

Parallel lines are lines in a plane that never meet; they are always the same distance apart.

Front

What is a transversal?

Back

A transversal is a line that intersects two or more lines at different points.

Front

What is the relationship between corresponding angles when a transversal cuts parallel lines?

Back

Corresponding angles are equal when a transversal cuts parallel lines.

Front

What are alternate interior angles?

Back

Alternate interior angles are pairs of angles that are on opposite sides of the transversal and inside the two lines; they are equal when the lines are parallel.

Front

What are alternate exterior angles?

Back

Alternate exterior angles are pairs of angles that are on opposite sides of the transversal and outside the two lines; they are equal when the lines are parallel.

Front

What are consecutive interior angles?

Back

Consecutive interior angles are pairs of angles that are on the same side of the transversal and inside the two lines; they are supplementary when the lines are parallel.

Front

How many angles are formed when a transversal intersects two parallel lines?

Back

Eight angles are formed when a transversal intersects two parallel lines.

Front

What is the sum of the angles formed by a transversal intersecting parallel lines?

Back

The sum of the angles formed by a transversal intersecting parallel lines is 360 degrees.

Front

If one angle measures 74 degrees, what is the measure of its corresponding angle?

Back

The corresponding angle also measures 74 degrees.

Front

If two angles are alternate interior angles and one measures 48 degrees, what does the other measure?

Back

The other alternate interior angle also measures 48 degrees.