Leg A= x^2 Leg B= x^2 Hypotenuse= 8.5 in What is x? AKA 8.5^2=x^2+x^2 <<<---=== If Leg A = x^2 and Leg B = x^2 then hypotenuse 8.5^2 = x^4 + x^4 which is not what you wrote. What is x?