Geometry for dummies / by Mark Ryan.

Includes index.

Getting started with geometry basics. Introducing geometry ; Building your geometric foundation ; Sizing up segments and analyzing angles -- Introducing proofs. Prelude to proofs ; Your starter kit of easy theorems and short proofs ; The ultimate guide to tackling a longer proof -- Triangles: polygons of the three-sided variety. Grasping triangle fundamentals ; Regarding right triangles ; Completing congruent triangle proofs -- Polygons of the four-or-more-sided variety. The seven wonders of the quadrilateral world ; Proving that you have a particular quadrilateral ; Polygon formulas: area, angles, and diagonals ; Similarity: same shape, different size -- Working with not-so-vicious circles. Coming around to circle basics ; Circle formulas and theorems -- Going deep with 3-D geometry. 3-D space: proofs in a higher plane of existence ; Getting a grip on solid geometry -- Placement, points, and pictures: alternative geometry topics. Coordinate geometry ; Changing the scene with geometric transformations ; Locating loci and constructing constructions -- The part of tens. Ten things to use as reasons in geometry proofs ; Ten cool geometry problems.

Students studying geometry in school will certainly learn about lines and angles, circles and triangles, and they’ll find everything they need to master those topics. But Geometry is so much more than shapes! Proofs are at the heart of any Geometry course, and they’re most often where students struggle. Geometry For Dummies, 3rd Edition, is overflowing with helpful and practical, plain-English information about proofs to help students succeed. --Publisher's description.