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 stories and practical examples from the world around you. And you'll actually use what you learn to make real-life decisions. Let's say you want to start your own custom chocolate shop: how much will you need to spend on ingredients? Learn how to put 3D geometry to work for you, and nail your class exams while you're at it.