Parallel Lines Cut By 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 intersects two or more lines at different points.

Front

What are corresponding angles?

Back

Angles that are in the same position on different parallel lines when 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 same side interior angles?

Back

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

Front

What is the relationship between corresponding angles when lines are parallel?

Back

Corresponding angles are equal.

Front

What is the relationship between alternate interior angles when lines are parallel?

Back

Alternate interior angles are equal.

Front

What is the relationship between same side interior angles when lines are parallel?

Back

Same side interior angles are supplementary (add up to 180°).

Front

If ∠L = 51°, what is the measure of the corresponding angle?

Back

∠L = 51° (corresponding angles are equal).

Front

If two angles are vertical angles, what is their relationship?

Back

Vertical angles are equal.