Learning geometry doesn't have to hurt. With a little bit of friendly guidance, it can even be fun Geometry For Dummies, 2nd Edition , helps you make friends with lines, angles, theorems, and postulates. It eases you into all the principles and formulas you need to analyze two- and three-dimensional shapes, and it gives you the skills and strategies you need to write geometry proofs. Before you know it, you'll be understanding proofs like an expert...