1 / 13

Lesson Menu

Lesson Menu. Main Idea and New Vocabulary Key Concept: Similar Figures Example 1: Identify Similar Figures Example 2: Find Missing Measures Example 3: Find Missing Measures. Solve problems involving similar figures. similar figures corresponding sides corresponding angles

geri
Download Presentation

Lesson Menu

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Lesson Menu Main Idea and New Vocabulary Key Concept: Similar Figures Example 1: Identify Similar Figures Example 2: Find Missing Measures Example 3: Find Missing Measures

  2. Solve problems involving similar figures. • similar figures • corresponding sides • corresponding angles • indirect measurement Main Idea/Vocabulary

  3. Key Concept

  4. Identify Similar Figures Which rectangle is similar to rectangle FGHI? Example 1

  5. Identify Similar Figures Find the ratios of the corresponding sides to see if they are the same. Rectangle LMNO Rectangle ABCD Rectangle QRST Not Similar Not similar Similar Answer: So, rectangle ABCD is similar to rectangle FGHI. Example 1

  6. A. B. C. D. Which triangle is similar to triangle ABC? Example 1 CYP

  7. If ΔABC ~ ΔDEF, find the length of . Find Missing Measures Example 2

  8. Write a proportion. Let x represent the length of . Then substitute. Answer: The length of is 16.5 centimeters. Find Missing Measures 3x = 4.5(11) Find the cross products. 3x = 49.5 Simplify. x = 16.5 Divide each side by 3. Example 2

  9. If rectangle ABCD ~ rectangle GHIJ then find the length of . A. 12 cm B. 8.5 cm C. 3.5 cm D. 3 cm Example 2 CYP

  10. Write a proportion. Find Missing Measures PALM TREES At a certain time of day, a cabbage palm tree that is 71 feet high casts a shadow that is 42.6 feet long. At the same time, a nearby flagpole casts a shadow that is 15 feet long. How tall is the flagpole? 71(15) = 42.6x Find the cross products. 1,065 = 42.6x Simplify. 25 = x Divide each side by 42.6. Answer: The tree is 25 feet tall. Example 3

  11. SHADOWS An oak tree that is 30 feet tall casts a shadow that is 10 feet long. At the same time, Joe, who is 6 feet tall also casts a shadow. How long is his shadow? A. 2 ft B. 9 ft C. 18 ft D. 20 ft Example 3 CYP

More Related