Unit 3 Parallel lines and Transversals vocabulary practice.

Front

What are angles inside the parallel lines and on opposite sides of the transversal called?

Back

Alternate interior angles

Front

What are angles outside the parallel lines and on opposite sides of the transversal called?

Back

Alternate exterior angles

Front

What is a straight line that crosses through a set of parallel lines called?

Back

Transversal line

Front

What are angles inside the parallel lines on the same side of the transversal called?

Back

Same-side interior angles

Front

What are angles in the same relative position; angles in 'matching corners' called?

Back

Corresponding angles

Front

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

Back

180 degrees

Front

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

Back

They are equal.

Front

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

Back

They are supplementary (sum to 180 degrees).

Front

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

Back

They are equal.

Front

What is the definition of parallel lines?

Back

Lines in a plane that never meet and are always the same distance apart.