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 intersects two or more lines at different points.

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 parallel lines.

Front

What are alternate exterior angles?

Back

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

Front

What are same-side interior angles?

Back

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

Front

How do you identify corresponding angles?

Back

Look for angles that are in the same relative position at each intersection.

Front

How do you identify alternate interior angles?

Back

Look for angles that are on opposite sides of the transversal and between the two parallel lines.

Front

How do you identify alternate exterior angles?

Back

Look for angles that are on opposite sides of the transversal and outside the two parallel lines.

Front

How do you identify same-side interior angles?

Back

Look for angles that are on the same side of the transversal and between the two parallel lines.