1. Chapter 2: Transformations
Section 2.6: Perimeters and Areas of Similar Figures

2. Quote of the Day
“Everybody’s a genius, it’s just a matter of whether you love yourself enough to admit it to yourself and fly with whatever your area of genius is.”
Orlando Mcguire

3. Do Now On separate sheet of paper. Answers:
1. Perimeter: 32 in. Area: 63 inches squared
2. Perimeter: 60 cm. Area: 225 cm squared
3. Perimeter: 12 cm. Area: 6 cm squared
4. Perimeter: 48 in. Area: 130 inches squared

4. Today’s Objectives Students will find ratios of perimeters and areas.
Students will use proportions to find perimeters and areas.

5. Key Idea Perimeters of similar figures:
When two figures are similar, the ratio of their perimeters is equal to the ratio of their corresponding side lengths.

6. Example 1

7. Key Idea Areas of similar figures:
When two figures are similar, the ratio of their areas is equal to the square of the ratio of their corresponding side lengths.

8. Example 2

9. Example 3