Parallel Lines and Transversal Vocabulary

Front

What are lines on the same plane that never intersect or cross?

Back

Parallel lines.

Front

What do you call angles outside the parallel lines that are on the same side of the transversal and supplementary?

Back

Same side exterior angles.

Front

What do you call angles inside the parallel lines that are on the same side of the transversal and supplementary?

Back

Same side interior angles.

Front

What are angles located outside the parallel lines called?

Back

Exterior angles.

Front

What do you call angles that are in the same position on different parallel lines and are equal in measure?

Back

Corresponding angles.

Front

What is the term for a line that intersects two or more lines at different points?

Back

Transversal.

Front

What is the relationship between alternate interior angles when two parallel lines are cut by a transversal?

Back

They are equal.

Front

What do you call angles that are on opposite sides of the transversal and inside the parallel lines?

Back

Alternate interior angles.

Front

What do you call angles that are on opposite sides of the transversal and outside the parallel lines?

Back

Alternate exterior angles.

Front

What is the sum of the measures of same side interior angles when two parallel lines are cut by a transversal?

Back

180 degrees.