Make sure your notebook cover sheet looks like this. #. BookBrief Description 1.S&S Problem 4.2, ACE 2, 5-8, 27 2. S&SProblem 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. - PowerPoint PPT Presentation
Transcript of Make sure your notebook cover sheet looks like this. #. BookBrief Description
Make sure your notebook cover sheet looks like this.#. Book Brief Description1. S&S Problem 4.2, ACE 2, 5-8, 272. S&S Problem 4.3
PAGE 64
You need: Calculator 4.3 Handout
Big Idea: Using Ratios and Similarity
4
2
56
These two triangles are similar.
x
12
430
1010
360
1010
These triangles are similar.
These are similar rectangles.
x = 10cm, Scale Factor small to large = 22 x 5cm = 10cm
x = 13.75cm, how?
Scale Factor small to large = 2.5.2.5 x 5.5cm=13.75cm
x = 2.5cm, how?
Scale Factor large to small = .25..25 x 10cm=2.5cm
x = 41.25cm, how?
12.5cm x ___ = 27.5cm27.5cm/12.5cm = 2.2scale factor = 2.218.75cm x 2.2 = xx = 41.25cm