Question

Find the scale factor from triangle A to triangle B:

Answer 1

Explanation:

x=3?

Answer 2

3

Explanation:

If you multiply 1 by 3 it gives you 3, the side of triangle B. Using that scale factor. you can then take the side of triangle B that is 9 and divide it by 3. That gives you the missing side of triangle A.

Hope this helps! :)