Respuesta :

Answer:

C

Step-by-step explanation:

Note that the right triangle has two tick marks.

This means that the sides are equivalent.

Therefore, this is a 45-45-90 triangle.

In a 45-45-90 triangle, the side lengths are n, and the hypotenuse is n√2

Since n is 5√2, then the hypotenuse x is n√2. Thus:

[tex]x=n\sqrt2\\x=(5\sqrt2)\sqrt2[/tex]

Simplify:

[tex]x=5(2)=10[/tex]

The answer is C :)