1 / 14

7-2 Homework Answers

24) 4/3 25) a/3 26) 7/4 or (3+4)/4 27) b/a = 4/3 11) ∆ABC~∆DEF SF 3:5 12)ABCD~FEDG SF 2:3 13)Not similar, explain 14) x = 4, y = 3 15) x = 8, y = 9, z = 5.25. 16) x = 12.75, y = 18. 5 17) 120 pix by 90 pix 18)24ft wide, 13.5ft high 19) 5 in 20) 9.5 in 21) 3: 5 22) 51 o

dimaia
Download Presentation

7-2 Homework Answers

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. 24) 4/3 25) a/3 26) 7/4 or (3+4)/4 27) b/a = 4/3 11)∆ABC~∆DEF SF 3:5 12)ABCD~FEDG SF 2:3 13)Not similar, explain 14) x = 4, y = 3 15) x = 8, y = 9, z = 5.25 16) x = 12.75, y = 18. 5 17) 120 pix by 90 pix 18)24ft wide, 13.5ft high 19) 5 in 20) 9.5 in 21) 3: 5 22) 51o 23) 5 : 3 24) 16.5 25) 25 26) 60ft 27) about 314 km 28) No, must be 29) SF of 1:1, 7-2 Homework Answers

  2. 12) x = 180ft, AA~ 13) x = 13.75ft, AA~ 14) about 169.2 m 15) Not ~, ratios not = 16) ∆LMN ~ ∆SMT by AA~ 17) a. No, explain b. Yes, explain 18) height = 15ft 19) height = 180ft 20) x = 6 21) x = 20 22) yes by AA~, the parallel lines create corresponding angles 7-3 Homework Answers

  3. 7-3 Indirect Measurement Review • Heading for progress tracker: Indirect measurement Worksheet • Do no write on worksheet! • Work with one person on the same piece of paper. • Draw a diagram for each problem • Work must be shown

  4. Take Home Quiz • Due Wednesday • Write on the quiz • Work must be shown to receive ANY credit. If you think there is no work to show then you must write me a written explanation

  5. 7-4 Similarity in Right Triangles Learning Goal: Use the relationships of similar right triangles, specifically the geometric mean.

  6. When the altitude is drawn to the hypotenuse of a right triangle, 3 similar triangles are created. Theorem 7-3

  7. Example 1 Write an extended similarity statement for the 3 similar triangles in the diagram.

  8. Notes: Geometric Mean • Geometric mean of a and b is the positive number x such that (the means are equal.) • Corollary 1 to theorem 7-3: The altitude to the hypotenuse is the geometric mean of the segments of the hypotenuse.

  9. Think of it like this!

  10. Corollary 2 to Theorem 7-2

  11. Example 2: solve for x and y.

  12. Example 3: Solve for x and y.

  13. Last Example! If you program the robot to go from A to D to pick up the bottle, how far does the robot travel?

  14. Classwork: Due Thursday/Friday • Heading for Progress tracker: pg 490 #12-19, 24-26 • What you don’t finish in class is homework, so use your time wisely! • Chapter 7 Test is next Wednesday.

More Related