دانلود کتاب Geometry Essentials for Dummies

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Just the critical concepts you need to score high in geometryThis practical, friendly guide focuses on critical concepts taught in a typical geometry course, from the properties of triangles, parallelograms, circles, and cylinders, to the skills and strategies you need to write geometry proofs. Geometry Essentials For Dummies is perfect for cramming or doing homework, or as a reference for parents helping kids study for exams.Get down to the basics — get a handle on the basics of geometry, from lines, segments, and angles, to vertices, altitudes, and diagonalsConquer proofs with confidence — follow easy-to-grasp instructions for understanding the components of a formal geometry proofTake triangles in strides — learn how to take in a triangle's sides, analyze its angles, work through an SAS proof, and apply the Pythagorean TheoremPolish up on polygons — get the lowdown on quadrilaterals and other polygons: their angles, areas, properties, perimeters, and much moreOpen the book and find:Plain-English explanations of geometry termsTips for tackling geometry proofsThe seven members of the quadrilateral familyStraight talk on circlesEssential triangle formulasThe lowdown on 3-D: spheres, cylinders, prisms, and pyramidsTen things to use as reasons in geometry proofsLearn to:Core concepts about the geometry of shapes and geometry proofsCritical theorems, postulates, and definitionsThe principles and formulas you need to know