1. P T K L R 5 6 3 8 x Two sides of ΔPRT are extended to create a similar triangle, ΔPLK, as shown. If x represents the length of segment LK, then What is the value of x? Bell Ringer 3/24

3. 2 4 4 8 A = b*h = (4)(2) A = 8 A = b*h = (8)(4) A = 32 sq. units

4. 2 4 4 8 What about the perimeter?? Our scale factor is 2. P = 2 + 4 + 2 + 4 P = 12 P = 8 + 4 + 8 + 4 P = 24

6. Understand that the ratio between the area of a polygon and the area of a copy of that polygon scaled by the factor of r will be r 2 Main Idea

7. In Class Work/ Homework Page 341 #1,2,6,7,8

8. 1.540 2.He needed only 2 bags of seed for the small field.

9. 6. The area of the scaled copy is 25 times the area of the original. 7.68 in. 2 8. C  65 cm 2