Geometry For Dummies

- Introduction

Part I: Getting Started with Geometry Basics
- Chapter 1: Introducing Geometry
- Chapter 2: Building Your Geometric Foundation
- Chapter 3: Sizing Up Segments and Analyzing Angles

Part II: Introducing Proofs
- Chapter 4: Prelude to Proofs
- Chapter 5: Your Starter Kit of Easy Theorems and Short Proofs
- Chapter 6: The Ultimate Guide to Tackling a Longer Proof

Part III: Triangles: Polygons of the Three-Sided Variety
- Chapter 7: Grasping Triangle Fundamentals
- Chapter 8: Regarding Right Triangles
- Chapter 9: Completing Congruent Triangle Proofs

Part IV: Polygons of the Four-or-More Sided Variety
- Chapter 10: The Seven Wonders of the Quadrilateral World
- Chapter 11: Proving That You've Got a Particular Quadrilateral
- Chapter 12: Polygon Formulas: Area, Angles, and Diagonals
- Chapter 13: Similarity: Same Shape, Different Size

Part V: Working with Not-So-Vicious Circles
- Chapter 14: Coming Around to Circle Basics
- Chapter 15: Circle Formulas and Theorems

Part VI: Going Deep with 3-D Geometry
- Chapter 16: 3-D Space: Proofs in a Higher Plane of Existence
- Chapter 17: Getting a Grip on Solid Geometry

Part VII: Placement, Points, and Pictures: Alternative Geometry Topics
- Chapter 18: Coordinate Geometry
- Chapter 19: Changing the Scene with Geometric Transformations
- Chapter 20: Locating Loci and Constructing Constructions

Part VIII: The Part of Tens
- Chapter 21: Ten Things to Use as Reasons in Geometry Proofs
- Chapter 22: Ten Cool Geometry Problems

Part IX: Appendixes
- Appendix A: Formulas and Other Important Stuff You Should Know
- Appendix B: Glossary

- Index

A graduate of Brown University and the University of Wisconsin Law School, Mark Ryan has been teaching math since 1989. He runs The Math Center (www.themathcenter.com) in Winnetka, Illinois, where he teaches high school math courses, including an introduction to geometry and a workshop for parents based on a program he developed, The 10 Habits of Highly Successful Math Students. In high school, he twice scored a perfect 800 on the math portion of the SAT, and he not only knows mathematics, he has a gift for explaining it in plain English. He practiced law for four years before deciding he should do something he enjoys and use his natural talent for mathematics. Ryan is a member of the Authors Guild and the National Council of Teachers of Mathematics. Geometry For Dummies, 2nd Edition, is Ryan s fifth book. Everyday Math for Everyday Life (Grand Central Publishing) was published in 2002; Calculus For Dummies (Wiley), in 2003; Calculus Workbook For Dummies (Wiley), in 2005; and Geometry Workbook For Dummies (Wiley), in 2006. His math books have sold over 200,000 copies.