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| Introduction | |
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| About This Book | |
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| Icons Explained | |
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| Letters to Students, Parents, and Teachers | |
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| About REA | |
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| Acknowledgments | |
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| Basic Properties of Points, Rays, Lines, and Angles | |
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| Naming, Points, Rays, Lines, and Angles by Using Letters | |
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| Test Yourself! | |
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| Measuring Line Segments and Angles | |
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| Test Yourself! | |
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| Categories of Angles and Lines-Part 1 | |
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| Acute, Right, Obtuse Angles | |
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| Perpendicular, Intersecting, Parallel Lines and Segments | |
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| Test Yourself! | |
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| Categories of Angles and Lines-Part 2 | |
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| Angles Formed by Parallel Lines and a Transversal | |
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| Angle Bisectors and Perpendicular Bisectors | |
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| Test Yourself! | |
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| (Lessons 1-4) | |
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| Perimeter of Polygons | |
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| Perimeter of Triangles and Quadrilaterals | |
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| Test Yourself! | |
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| Triangles-Part 1 | |
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| Acute, Right, and Obtuse Triangles | |
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| Congruent, Scalene, and Isosceles Triangles | |
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| Equilateral Triangles | |
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| Test Yourself! | |
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| Triangles-Part 2 | |
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| Exterior, Adjacent Interior, and Remote Interior Angles | |
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| Altitudes, Heights, Medians, Angle Bisectors, Medians, and Mid-Segments | |
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| Test Yourself! | |
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| Triangles-Part 3 | |
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| Area of a Triangle | |
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| Angle Bisector Theorem and Median Theorem | |
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| Test Yourself! | |
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| Triangles-Part 4 | |
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| Legs and Hypotenuse of a Right Triangle | |
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| Pythagorean Theorem | |
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| Test Yourself! | |
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| (Lessons 5-9) | |
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| Quadrilaterals-Part 1 | |
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| Squares | |
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| Rectangles | |
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| Rhombi | |
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| Test Yourself! | |
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| Quadrilaterals-Part 2 | |
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| Parallelograms | |
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| Trapezoids | |
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| Test Yourself! | |
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| Congruence of Triangles | |
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| Side-Side-Side Requirement | |
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| Side-Angle-Side, Angle-Side-Angle | |
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| Side-Angle-Angle | |
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| Test Yourself! | |
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| Congruence of Quadrilaterals | |
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| Requirements for Congruencies Between Two Quadrilaterals | |
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| Test Yourself! | |
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| (Lessons 10-13) | |
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| Similarity of Triangles | |
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| Proportion | |
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| Angle-Angle, Side-Side-Side, Angle-Angle, Side-Angle-Side | |
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| Test Yourself! | |
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| Similarity of Quadrilaterals | |