Parallel Lines

	Introduction
	Consider two lines in a plane. They either have one point in common, or they have no common point.
	Parallel Lines
	The perpendicular distance between two parallel lines is the same at all points.
	Transversal
	If two parallel lines are cut by a transversal, the alternate angles are equal.
	Corresponding Angles Axiom
	If two parallel lines are cut by a transversal, then the corresponding angles are equal.
	Alternate Angles Axiom
	If two parallel lines are cut by a transversal, the alternate angles are equal.
	Allied Angles Axiom
	If two parallel lines are cut by a transversal, then the allied angles are supplementary.
	Summary
	If two parallel lines are cut by a transversal, the corresponding angles are equal.
	Questions and Answers

Parallel Lines

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