Answer:

Explanation:
We want to find the scale factor of the dilation from ΔXYZ to ΔUVW.
The scale factor is given by the formula;

Since the dilation is from ΔXYZ to ΔUVW, our image triangle is ΔUVW.
We can now use any of the corresponding sides to determine the scale factor.


We simplify to get;

We cancel the common factors to get;

Therefore the scale factor is
