Answer:
x=25.1
Explanation:
by using Pythagorean theorem,
where c is the hypotenuse
= 329.4225
= 302.4121
since those two side lengths are the legs, the sum of the numbers is the length of the hypotenuse squared
therefore, 631.8356 (the sum) =

by taking the square root of 631.8356, you will get approx 25.1 for the hypotenuse (aka x)