Question

Find the value of x. Then tell whether the side lengths from a Pythagorean triple

Answer 1

The Pythagorean Theorem is:
a^2 + b^2 = c^2
so you plug in the values you know (c is always the hypotenuse)
x^2 + 24^2 = 26^2 
and the value of x=10
and yes the side lengths are a pythagorean triple