You may be comfortable with conventional two-dimensional geometry, but what about 3D geometry? Do spheres, polygons, and the Pythagorean equation just make you dizzy? With Head First 3D Geometry, you'll learn how to calculate the volume of 3D shapes, use algebra as a shortcut for geometric calculations, and take the mystery out of triangles with trigonometry -- and believe it or not, it's fun stuff. You'll go beyond boring problems with entertaining...