If s represents the value of each side of an isosceles right triangle and h represents the value of the hypotenuse,
then h = s·√(2) and s = h/√(2) or s = h·√(2) /2
So:
if h = 4 ---> s = 4·√(2) /2 = 2·√(2)
if h = 5 ---> s = 5·√(2) /2
if h = 3·√(2) ---> h = 3·√(2)·√(2) /2 = 3
If s represents the value of each side of an isosceles right triangle and h represents the value of the hypotenuse,
then h = s·√(2) and s = h/√(2) or s = h·√(2) /2
So:
if h = 4 ---> s = 4·√(2) /2 = 2·√(2)
if h = 5 ---> s = 5·√(2) /2
if h = 3·√(2) ---> h = 3·√(2)·√(2) /2 = 3