Respuesta :

Answer:

[tex]x=\sqrt{6}[/tex]

Step-by-step explanation:

To find the hypotenuse, it is [tex]a^{2}+b^{2}=c^{2}[/tex]

So...

[tex]1^{2}+x^{2} =\sqrt{7}\\1+x^{2} =\sqrt{7} \\x=\sqrt{6}[/tex]