i Table of contents 246

Geometry Companion Book, Volume 2

This companion book to Thinkwell's Geometry course includes: • Illustrated lesson notes • Lesson worksheets • Practice exercises • Review worksheets • Suggested pacing guide • Formula and resource worksheets Geometry Volume 2 covers: Ch 6 - Polygons and Quadrilaterals Ch 7 - Similarity Ch 8 - Right Triangles and Trigonometry Ch 9 - Extending Perimeter, Circumference and Area Ch 10 - Spatial Reasoning

Cover		1
Welcome Page		5
Table of Contents		9
Tips for Success		11
Suggested Pacing Guide		13
Chapter 6 – Polygons and Quadrilaterals		15
6.1 Polygons and Parallelograms		17
6.1.1 Properties and Attributes of Polygons		19
6.1.2 Properties of Parallelograms		26
6.1.3 Conditions for Parallelograms		32
6.1 Review Worksheet		39
6.2 Other Special Quadrilaterals		43
6.2.1 Properties of Special Parallelograms		45
6.2.2 Conditions for Special Parallelograms		51
6.2.3 Properties of Kites and Trapezoids		56
6.2 Review Worksheet		65
Chapter 7 – Similarity		69
7.1 Similarity Relationships		71
7.1.1 Ratio and Proportion		73
7.1.2 Ratios in Similar Polygons		79
7.1.3 Triangle Similarity: AA, SSS, and SAS		83
7.1 Review Worksheet		89
Chapter 8 – Right Triangles and Trigonometry		93
8.1 Trigonometric Ratios		95
8.1.1 Similarity in Right Triangles		97
8.1.2 Trigonometric Ratios		102
8.1.3 Solving Right Triangles		108
8.1 Review Worksheet		114
Chapter 9 – Extending Perimeter, Circumference, and Area		119
9.1 Developing Geometric Formulas		121
9.1.1 Developing Formulas for Triangles and Quadrilaterals		123
9.1.2 Developing Formulas for Circles and Regular Polygons		132
9.1 Review Worksheet		137
Chapter 10 – Spatial Reasoning		141
10.1 Surface Area and Volume		143
10.1.1 Surface Area of Prisms and Cylinders		145
10.1.2 Surface Area of Pyramids and Cones		153
10.1.3 Volume of Prisms and Cylinders		161
10.1 Review Worksheet		168
Chapter 11 – Circles		175
11.1 Lines and Arcs in Circles		177
11.1.1 Lines That Intersect Circles		179
11.1.2 Arcs and Chords		185
11.1 Review Worksheet		191
11.2 Angles and Segments in Circles		195
11.2.1 Inscribed Angles		197
11.2.2 Angle Relationships in Circles		204
11.2.3 Segment Relationships in Circles		211
11.2 Review Worksheet		216
Chapter 12 – Transformational Geometry		221
12.1 Congruence Transformations		223
12.1.1 Reflections		225
12.1.2 Translations		231
12.1.3 Rotations		236
12.1 Review Worksheet		242
Blank Graph Paper		247

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