Bell Ringer 4/12/10 If BC= 23ft, AC = 28 ft, AE = 2ft What is the height of segment DE? X = 1.64 ft

TO DO:

a. Segment DE is parallel to segment BC b. Δ ADE and Δ ABC

Using similar triangles, how tall is the chair? The distance from Mr. Fosco’s eye to his thumb, with his arm fully extended and parallel to the ground is 19.25 inches. His thumb is 1.75 inches. He was 334 inches away from a chair, and wanted to know how tall the goal post chair was. Using similar triangles, how tall is the chair? X = 30.36 in.

12 inch = 1 ft

1 A flag pole outside Schurz High School casts a shadow that is 174 inches long, a 120 inch tree, also outside Schurz High School casts a shadow that is 100 inches long., how tall is the flagpole.

2 While walking through Lincoln Park Zoo, Ms. Rosendahl noticed that a giraffe casts a very long shadow, so she measured it and the shadow was 18ft long. She then measured her own shadow and it was 6.4ft long. If Ms. Rosendahl is 5. 8 ft tall, how tall is the Giraffe?

3 The traffic light on the corner of Halsted is 16 feet tall and casts a shadow that is 11 feet long. The streetlight casts a shadow that is 14 feet long. How tall is the streetlight?

Homework Page 444 #5