The formula for pythagorean theorem is a2+b2=c2. A is the short leg, B is the long leg, and C is the hypotenuse. You are given the long leg(24) and the short leg(10). They want you to find the hypotenuse.
So you are going to do...
\(10^2+24^2=x^2\)
\(100+576=x^2\)
\(676=x^2\)
\(\sqrt{676}=\sqrt{x^2} \)
\(26=x\)
With this said, the hypotenuse is going to be 26.