2. Problem Solving in Geometry with Proportions 8.2

3. Problem Solving in Geometry with Proportions 8.2 Chapter 8 Similarity Section 8.2 Problem Solving in Geometry With Proportions

4. Problem Solving in Geometry with Proportions 8.2 Example: 4 is the geometric mean between 2 and 8

5. Problem Solving in Geometry with Proportions 8.2 Example The Ratio of the tops = The ratio of the bottom It’s OK to add the bottom to the top on each side

6. Problem Solving in Geometry with Proportions 8.2

7. Problem Solving in Geometry with Proportions 8.2 True: Reciprocal Property False True: Ratio of Bottoms = Ratio of Tops False

8. Problem Solving in Geometry with Proportions 8.2 x 2 = 60 x 2 = 96 x 2 = 120

9. Problem Solving in Geometry with Proportions 8.2 x 2 = 150 x 2 = 192 x 2 = 480

10. Problem Solving in Geometry with Proportions 8.2 Fill in the numbers and solve for JN 14 14(JN) = 48

11. Problem Solving in Geometry with Proportions 8.2 Fill in the numbers and solve for PQ 16 - PQ 4(PQ) = 6(16 – PQ) 4(PQ) = 96 – 6(PQ) 10 PQ = 96

12. Problem Solving in Geometry with Proportions 8.2 Fill in the numbers and solve Let x represent the price you paid in dollars 9.52x = 450 x = 47.27 You paid $47.27 for the Jacket

13. Problem Solving in Geometry with Proportions 8.2 Fill in the numbers and solve Let x represent the price you paid in dollars x = 20.4 You paid $20.40 for the sweater

14. Problem Solving in Geometry with Proportions 8.2 Need to know the distance: d = rt = 10(12) = 120 Let x represent the wingspan 3x = 120 x = 40 The plane’s wingspan was 40 feet.

15. Problem Solving in Geometry with Proportions 8.2 HW #11 Pg 468-471 10-28 Even, 29-31, 33, 34, 38-40, 44, 45