Introduction 1

Chapter 1: An Overview of Geometry 5

Chapter 2: Geometry Proof Starter Kit 21

Chapter 3: Tackling a Longer Proof 41

Chapter 4: Triangle Fundamentals 51

Chapter 5: Congruent Triangle Proofs 69

Chapter 6: Quadrilaterals 85

Chapter 7: Polygon Formulas 107

Chapter 8: Similarity 119

Chapter 9: Circle Basics 135

Chapter 10: 3-D Geometry 151

Chapter 11: Coordinate Geometry 161

Chapter 12: Ten Big Reasons to Use in Proofs 171

Index 175