1. Similar Figures
Use a proportion to compare similar sides to solve for an unknown length.
If each pair of figures is similar, find the length of x.
3.Triangle ABC is similar to triangle XYZ. The length AB is 10. The length BC is 7.
Find the length XY if the length YZ is 14.

2. You can use proportions to find the height of things you may not otherwise be able to determine.
4. What is the height of the tree? What is the height of the building?
6. Steven is using similar triangles to find the height of a tree. Steve is 6ft tall and casts a shadow
that is 4ft long. The tree casts a shadow that is 32 feet long. How tall is the tree?