Answer:
8
Step-by-step explanation:
Use the pythagorean theorem. The hypotenuse (c) is 10, and one of the sides, let's say (b), is 6. Therefore, we need to solve for a and plug and chug. Let's do that:
[tex]c^2 = a^2+b^2[/tex]
[tex]a = \sqrt{c^2-b^2}[/tex]
Now let's plug in what we know:
[tex]a = \sqrt{10^2-6^2} = \sqrt{64} = 8[/tex]
Therefore, a = x = 8
