GEOMETRY TEXTBOOK BY CHAPTERS CHAPTER 1 LINES & ANGLES CHAPTER 2 REASONING & PROOF CHAPTER 3 PARALLEL & PERPENDICULAR LINES CHAPTER 4 CONGRUENT TRIANGLES CHAPTER 5 RELATIONSHIPS IN TRIANGLES CHAPTER 6 PROPORTIONS & SIMILARITY CHAPTER 7 RIGHT TRIANGLES & TRIGONOMETRY CHAPTER 8 QUADRILATERALS CHAPTER 9 TRANSFORMATIONS CHAPTER 10 CIRCLES CHAPTER 11 AREA OF POLYGONS & CIRCLES CHAPTER 12 SURFACE AREA CHAPTER 13 VOLUME