http://www.ck12.org Chapter 3. Parallel and Perpendicular Lines
CHAPTER
3 Parallel and Perpendicular Lines
Chapter Outline
3.1 Lines and Angles
3.2 PROPERTIES OFPARALLELLINES
3.3 PROVINGLINESPARALLEL
3.4 PROPERTIES OFPERPENDICULARLINES
3.5 PARALLEL ANDPERPENDICULARLINES IN THECOORDINATEPLANE
3.6 THEDISTANCEFORMULA
3.7 CHAPTER3 REVIEW
In this chapter, you will explore the different relationships formed by parallel and perpendicular lines and planes.
Different angle relationships will also be explored and what happens to these angles when lines are parallel. You
will continue to use proofs, to prove that lines are parallel or perpendicular. There will also be a review of equations
of lines and slopes and how we show algebraically that lines are parallel and perpendicular.