11:57 Learning Goal from Lesson 12.1 I can prove two theorems using triangle similarity: the theorem that a line parallel to one side of a triangle divides the other two proportionally, and the Pythagorean theorem. 8. In AAEB, CD is parallel to AB. Complete each proportion. (1 point) EC a ==== CA EC b EA EB C. ED DB d. EB i How I Did (Circle one) I got it! I'm still learning it. B Learning Goal from Lesson 12.3 and 12.4 I can prove theorems about geometric figures using triangle congruence and similarity. How I Did (Circle one) I got it! I'm still learning it. 9. The triangles below are similar. What is the area of the larger triangle? (Lesson 12.3) (1 point) (Base) Cheight) = 2 20x2 6 ft 10 ft 20 ft 10. Ryan is 6 feet tall. At a certain time of day, he casts a shadow that is 12 feet long. At the same time, a tree casts a shadow that is 28 feet long. What is the height of the tree? (Lesson 12.3) (1 point) 6 ft 12ft 28 ft lifelong Geometry B Credit 2 L4L-Geometry B (2020) Page 15 LEARNING 92

11:57 Learning Goal from Lesson 12.1 I can prove two theorems using triangle similarity: the theorem that a line parallel to one side of a triangle divides the other two proportionally, and the Pythagorean theorem. 8. In AAEB, CD is parallel to AB. Complete each proportion. (1 point) EC a ==== CA EC b EA EB C. ED DB d. EB i How I Did (Circle one) I got it! I'm still learning it. B Learning Goal from Lesson 12.3 and 12.4 I can prove theorems about geometric figures using triangle congruence and similarity. How I Did (Circle one) I got it! I'm still learning it. 9. The triangles below are similar. What is the area of the larger triangle? (Lesson 12.3) (1 point) (Base) Cheight) = 2 20x2 6 ft 10 ft 20 ft 10. Ryan is 6 feet tall. At a certain time of day, he casts a shadow that is 12 feet long. At the same time, a tree casts a shadow that is 28 feet long. What is the height of the tree? (Lesson 12.3) (1 point) 6 ft 12ft 28 ft lifelong Geometry B Credit 2 L4L-Geometry B (2020) Page 15 LEARNING 92

Elementary Geometry For College Students, 7e

7th Edition

ISBN:9781337614085

Author:Alexander, Daniel C.; Koeberlein, Geralyn M.

Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.

Chapter5: Similar Triangles

Section5.6: Segments Divided Proportionally

Problem 35E: Use Theorem 5.6.3 to complete the proof of this theorem: If the bisector of an angle of a triangle...

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