The angles that form the shape "Z" when two parallel lines are cut by a transversal are
Alternate angles
Exterior angles
Corresponding angles
Interior angles
Alternate interior angles and alternate exterior angles form the shape "Z" when two parallel lines are cut by a transversal.
Alternate interior angles formed when a transversal cuts two parallel lines, are
When a transversal cuts two lines such that pairs of alternate interior angles are ___, then the lines have to be parallel.