Could someone help me please need answer ASAP

Here we use altitude rule which states that
Ratio of part of hypotenuse and height= ratio of height and remaining part of hypotenuse .
So here parts of hypotenuses are r and s and h is the hypotenuse. SO we will get
[tex] \frac{r}{h} = \frac{h}{s}
[/tex]
Correct option is s.