Question

How do you Find x on a triangle that has a hypotenuse of x a side of 15 and a side of 20

Answer 1

is this a right triangle? if so, you can use the pythagorean theorem...
\[c^2 = a^2 + b^2\]
where x is your "c" and either 15 or 20 is your "a" or "b"