1 / 27

Make sure your notebook cover sheet looks like this. #. Book Brief Description

Make sure your notebook cover sheet looks like this. #. Book Brief Description 1. S&S Problem 4.2, ACE 2, 5-8, 27 2. S&S Problem 4.3. PAGE 64. You need: Calculator 4.3 Handout. Big Idea: Using Ratios and Similarity. These two triangles are similar. 12. 4. 5. 6. 2. x.

kiona-burke
Download Presentation

Make sure your notebook cover sheet looks like this. #. Book Brief Description

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. Make sure your notebook cover sheet looks like this. #. Book Brief Description 1. S&S Problem 4.2, ACE 2, 5-8, 27 2. S&S Problem 4.3 PAGE 64 You need: Calculator 4.3 Handout Big Idea: Using Ratios and Similarity

  2. These two triangles are similar. 12 4 5 6 2 x

  3. These triangles are similar. 1010 430 1010 360

  4. These are similar rectangles.

  5. x = 10cm, Scale Factor small to large = 2 2 x 5cm = 10cm

  6. x = 13.75cm, how? Scale Factor small to large = 2.5. 2.5 x 5.5cm=13.75cm

  7. x = 2.5cm, how? Scale Factor large to small = .25. .25 x 10cm=2.5cm

  8. 12.5cm x ___ = 27.5cm 27.5cm/12.5cm = 2.2 scale factor = 2.2 18.75cm x 2.2 = x x = 41.25cm x = 41.25cm, how?

  9. x1.75 = 2 3.5 2 3.5 x 1.75 = x, x=1

  10. 1x1.75= 2x1.75= 5x1.75= 3x1.75= 2x1.75= 3x1.75= 8x1.75= 4x1.75= 8 x scale factor = 14 14/8 = 1.75, so scale factor = 1.75 4 1.75 = y, y = 7

  11. 2x3 = 6 1 x 4 = 4 5 x 6 = 30 4in2 + 30in2 + 6in2 = 40in2

  12. Scale Factor = 1.75 40in2 x 1.75 x 1.75 = 122.5in2

  13. Make sure your notebook cover sheet looks like this. #. Book Brief Description 1. S&S Problem 4.2, ACE 2, 5-8, 27 2. S&S Problem 4.3, ACE 9-11 Page 68 YOU NEED: Calculators

  14. a = 15, b = 240 b is 16 times greater than a.

  15. 7 p= 3 a= SF 4 P= A =

  16. 10 6 P = A = SF = 1/2 P = A =

  17. Which of the shapes are similar? p q s k x l

  18. r a 12 4 u b 2.5 SF ajv to ubr = ____ v j 1 ub = ____ rb = ____

More Related