Hey!
The formula for finding the length of the hypotenuse is:
[tex] a^{2} + b^{2} = c^{2} [/tex]
That means you have to square both numbers.
[tex] 6\ squared = 6^{2} \\ 11\ squared = 11^{2} [/tex]
That gives you:
[tex] 6^{2} + 11^{2} = c^{2} [/tex]
That means your answer is the first choice
[tex] \framebox{Answer = 1st choice} [/tex]
