1. By Derrick Moore And Dakota Boren

2.  Identify congruent or similar solids.  State the properties of similar solids.

3.  Similar solids- A solid that has exactly the same shape but not necessarily the same size. You can determine if 2 solids are similar by comparing the ratios of their corresponding linear measurements.

4. Scale Factor

5. Base edge of larger pyramid ________________________ Base edge of smaller pyramid Height of larger pyramid _____________________ Height of smaller pyramid Lateral edge of larger pyramid ___________________________ Lateral edge of smaller pyramid

6. h=5 h=2 3 1 3 1 2.5 5.5 Are these two pyramids similar?

7. Base edge of larger pyramid ________________________ Base edge of smaller pyramid 3/1 Height of larger pyramid _____________________ Height of smaller pyramid 5/2 Lateral edge of larger pyramid ___________________________ Lateral edge of smaller pyramid 5.5/2.5 Answer: no, their ratios are different

8. How to find the ratios of corresponding parts of cones and Cylinders Radius of larger cone/cylinder ____________________ Radius of smaller cone/cylinder Height of larger cone/cylinder ___________________ Height of smaller cone/cylinder

9. Example R=3R=6 h=2,234 h=1,117 Are these cones similar? 6/3 2234/1117 =2/1 2/1 = 2/1 the cones are similar

11. pg. 711 #11-30