Identify the value of m. Give your answers in simplest radical form. C is incorrect! PLEASE HELP ME! I'm stuck on this problem!!

Answer: (B) 4√2
Step-by-step explanation:
45-45-90 is a special triangle because the side lengths are congruent and the hypotenuse is √2 times the side lengths.
So, m√2 = 8
[tex]m=\dfrac{8}{\sqrt2}[/tex]
[tex]m=\dfrac{8}{\sqrt2}(\dfrac{\sqrt2}{\sqrt2})[/tex]
[tex]m=\dfrac{8\sqrt2}{2}[/tex]
[tex]m=4\sqrt2[/tex]