Fun with figures,

by Mae Blacker Freeman

The "figures" in this book are triangles, squares, circles and other shapes drawn and used in geometry. This science was used in Egypt at least five thousand years ago to measure land flooded by the River Nile, and the name geometry comes from Greek words meaning "earth-measuring".Many useful and beautiful articles are designed with the help of geometry. Artists and craftsmen often use geometric figures and patterns. Engineers rely on this brach of mathematics when they plan bridges, tunnels, machines and buildings. This book is filled with fun projects that will give you a real understanding of one of the most important branches of mathematics. Chapter titles Straight Lines, Lines That Never Meet, Angles, Reflection ANgles, Lines That Cross Squarely, Triangles, Equal-sided Triangles, Shadows Measure Height, Measuring Distances, Circles, More About Circles, Round Figures, Ovals, How to Draw an Ellipse, The Parabola, SPirals, The Helix, The Thread of a Screw, Quiver Pictures, One-Sided Piece of Paper, Knots, The Three Tags, Cutting and Fitting, Tangram, ature's Geometry, Star Cut-out and Objects With Many Faces. Filled with photographs

60 pages, Hardcover

First published January 1, 1963