geometry problem

Let the altitude from the 9 and 25 side be x. We have the area of the triangle: 34x/2=17x. By the pythagorean theorem, the side next to the x is $\sqrt{x^2+81}$. The area is also $\frac{\sqrt{x^2+81}*y}{2}$. So we have $\frac{\sqrt{x^2+81}*y}{2}=17x\rightarrow y=\frac{34x}{\sqrt{x^2+81}}$. Note that it is now impossible to find y without knowing x. There has to be more information. y could be anything. Try random values for x, it will generate a random value for y.

h = sqrt( 9 * 25 )

                                                             y / 34 = 25 / y

h = 15                                                    

                                                 or          y² = 850

y = sqrt(15² + 25²)

                                                              y = √850

y = √850