Am I correct ? If not the question is refer to the figure to complete this proportion r/h=h/? Answers A)r B)s C)h D)c

Here we have two right triangles. And in such case we have to use altitude rule which is
ratio of part of hypotenue and altitude= ratio of altitude and remaining part of hypotenuse
So we get
r/h =h/s
So the correct option is s .