Geometry Essentials For DummiesJust the critical concepts you need to score high in geometry This 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.
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Contents
Introduction  1 
An Overview of Geometry  5 
Geometry Proof Starter Kit  21 
Complementary and Supplementary Angles  27 
Like Multiples and Like Divisions  35 
Tackling a Longer Proof  41 
Triangle Fundamentals  51 
Regarding Right Triangles  57 
Polygon Formulas  107 
Similarity  119 
Proving Triangles Similar  125 
More Proportionality Theorems  131 
Circle Basics  135 
3D Geometry  151 
Coordinate Geometry  161 
Equations for Lines and Circles  167 