Class notes from section 11-8. These were from class on 4-12-07 in case you missed it.

1. Find missing lengths in similar figures.

2. Similar figures- Find missing lengths in similar figures.

3. How are the sides related in similar figures? Each mark above indicates corresponding side. Find missing lengths in similar figures. A B C D A' B' C' D'

4. In similar figures, the ratios of corresponding lengths are equal. Name the corresponding sides. Find missing lengths in similar figures. A B C D A' B' C' D'

5. Find x. A 7 9 13 A' B' C' 4 x y Extremes Means Find missing lengths in similar figures. ABC is similar to A'B'C' B C

6. A lumberjack is 6 ft tall and looking for a tree that is 28 ft tall. He uses geometry to figure the height of a tree. Does this one meet his requirement? Explain. Find missing lengths in similar figures. 25 ft 7 ft 6 ft