Suppose your teacher gives you two pieces of spaghetti to represent two lines. She tells you to arrange them so that your two "lines" are parallel. How will you know if your two "lines" are indeed parallel? Select all the ways that would work.

Measure between the two pieces of spaghetti from one end to the other, and make sure the distance is the same everywhere. Use a third piece of spaghetti as a transversal, and arrange the two original pieces so that corresponding angles are congruent. Use a third piece of spaghetti as a transversal, and arrange the two original pieces so that alternate interior angles are congruent. Put the right-most end of the first piece of spaghetti directly above the right-most end of the second piece of spaghetti, and be sure that the two pieces of spaghetti do not cross each other. Put the two pieces of spaghetti on top of each other, and then carefully slide one piece of spaghetti straight up until there is a small distance between them.