In this chapter you will learn:

5.1 Indirect Proof

5.2 Proving that Lines are Congruent

5.3 Congruent Angles associated with Parallel Lines

5.4 Four-Sided Polygons

5.5 Properties of Quadrilaterals

5.6 Proving that a Quadrilateral is a Parallelogram

5.7 Proving that Figures are Special Quadrilaterals