The shortest side = 4
The next shortest side = x, so x > 4
The longest side, the hypotenuse, is
[That's probably all you wanted, but I'll continue]
The longest side of any triangle must be shorter than the
sum of the shorter sides, so


Start with


Square both sides


Add 16 to both sides:




Take the positive square roots of both sides:






Changing to <


Since 





Edwin