Geometry: Seeing, Doing, Understanding, 3rd edition

Harold Jacobs' Geometry: Seeing, Doing, Understanding is an authoritative math text through which nearly one million students have learned the principles of geometry. Students learn through a combination of discussions, cartoons, anecdotes, and vivid exercises that work together to develop an understanding of the concepts behind the formulas. A proof-based course, Jacobs' Geometry will help students see the main ideas and applications, put their new understanding into practice through doing the exercises, and finally understand why geometry works the way it does. Sixteen units cover: lines, angles, direct and indirect proofs, congruence, inequalities, parallel lines, quadrilaterals, transformations, area, similarity, triangles, circles, concurrence theorems, non-Euclidean geometries, and more.

780 pages, indexed, softcover. Selected answers are provided in the back of the text.