1. Chapter 7
Similarity

2. Section 1 Ratio and Proportion

4. Example 1: Simplify Ratios Simplify the ratio
Example 1: Simplify Ratios Simplify the ratio. a) 60 cm : 200 cm b) 3 𝑓𝑡 18 𝑖𝑛.

5. Example 2: Use Ratios In the diagram, AB:BC is 4:1 and AC = 30
Example 2: Use Ratios In the diagram, AB:BC is 4:1 and AC = 30. Find AB and BC.

6. Example 3: Use Ratios The perimeter of a rectangle is 80 feet
Example 3: Use Ratios The perimeter of a rectangle is 80 feet. The ratio of the length to the width is 7:3. Find the length and the width of the rectangle.

7. Checkpoint: Use Ratios
In the diagram, EF:FG is 2:! And EG = 24. Find EF and FG.
The perimeter of a rectangle is 84 feet. The ratio of the length to the width is 4:3. Find the length and the width of the rectangle.

10. Example 4: Solve a Proportion Solve the proportion.

11. Checkpoint: Solve a Proportion

12. Example 5: Write and Solve a Proportion

13. Checkpoint: Write and Solve a Proportion Use the map of Texas and a ruler to estimate the distance between the two cities. a) El Paso and Amarillo b) Houston and Austin

14. EXIT SLIP