Chapter 2: Segment Measure and Coordinate Graphing
Page 49 Mathematics of Cartography

Chapter 3: Angles
Page 89 Nielsen Ratings

Chapter 4: Parallels
Page 141 National Press Photographers Association

Chapter 5: Triangles and Congruence
Page 187 World of Escher

Chapter 6: More About Triangles
Page 227 Baseball

Chapter 7: Triangle Inequalities
Page 275 Presidential Campaign Buttons

Chapter 8: Quadrilaterals
Page 309 Op Art and Victor Vasarely
Page 309 Quilt History

Chapter 9: Proportions and Similarity
Page 349 Buying Furniture

Chapter 10: Polygons and Area
Page 401 M.C. Escher's Tessellated Designs

Chapter 11: Circles
Page 453 The Story of Pi

Chapter 12: Surface Area and Volume
Page 495 Packaging

Chapter 13: Right Triangles and Trigonometry
Page 547 Hypercoaster

Chapter 14: Circle Relationships
Page 585 logo designs

Chapter 15: Formalizing Proof
Page 631 Promoting Honest Advertising

Chapter 16: More Coordinate Graphing and Transformations
Page 675 Mosaic Art