Consider the following right triangle. Which equation below can be used to solve for the unknown side length?

Answer: Choice B) [tex]36 + x^2 = 64[/tex]
Explanation:
We use the pythagorean theorem with the following values
So,
[tex]a^2 + b^2 = c^2\\\\6^2 + x^2 = 8^2\\\\36 + x^2 = 64\\\\[/tex]