CliffsQuickReview course guides cover the essentials of your toughest classes. Get a firm grip on core concepts and key material, and test your newfound knowledge with review questions.<p>From planes, points, and postulates to squares, spheres, and slopes — and everything in between — <i>CliffsQuickReview Geometry</i> can help you make sense of it all. This guide introduces each topic, defines key terms, and walks you through each sample problem step-by-step. Begin with a review of fundamental ideas such as theorems, angles, and intersecting lines. In no time, you'll be ready to work on other concepts such as<ul><li>Triangles and polygons: Classifying and identifying; features and properties; the Triangle Inequality Theorem; the Midpoint Theorem; and more<li>Perimeter and area: Parallelograms, trapezoids, regular polygons, circles<li>Similarity: Ratio and proportion; properties of proportions; similar triangles<li>Right triangles<li>Circles: Central angles and arcs; inscribed angles; chords, secants, tangents; arc length, sectors<li>Geometric solids and coordinate geometry</ul><p><i>CliffsQuickReview Geometry</i> acts as a supplement to your textbook and to classroom lectures. Use this reference in any way that fits your personal style for study and review — you decide what works best with your needs. Here are just a few ways you can search for topics:<ul><li>Use the free Pocket Guide full of essential information<li>Get a glimpse of what you'll gain from a chapter by reading through the Chapter Check-In at the beginning of each chapter<li>Use the Chapter Checkout at the end of each chapter to gauge your grasp of the important information you need to know<li>Test your knowledge more completely in the CQR Review and look for additional sources of information in the CQR Resource Center<li>Use the glossary to find key terms fast.</ul><p>With titles available for all the most popular high school and college courses, CliffsQuickReview guides are a comprehensive resource that can help you get the best possible grades.