# Related Rates Triangle 3

- Author:
- Jeff Holcomb

- Topic:
- Calculus, Functions, Similar Triangles, Triangles

Explore the sketch. How does moving different things effect other things?

1) Drag point F. What's changing and what's not changing?
(The big idea here is that we can relate how different parts of the triangle are changing.)
2) Suppose that AB = 3 cm, FG = 2 cm, and FA = x cm. Write a function for CF in terms of x.