The length of the other side and the hypotenuse are both unknown and the only known relationship is in a single Pythagorean equation: h^2=(1/4)^2+s^2 where h and s are the hypotenuse and unknown side. From one equation and two variables, all that can be established is a relationship: h^2=s^2+1/16 or 16h^2=16s^2+1, which can be plotted as a graph to represent all possible solutions, where the graph is in the first quadrant only (s>0).