Answer:
SQ = 4
Explanation:
We can solve for the constant of proportionality (
) between triangle QRS and XYZ by comparing corresponding side lengths.
With the given information, we can compare the right side of each triangle:

↓ plugging in given values

↓ simplifying

So, the constant of proportionality (
) between
QRS and
XYZ is 3.
We can use this constant to solve for the length of SQ, since we can see that it corresponds to ZX on the other triangle.

↓ plugging in given values

↓ dividing both sides by 3
