Pythagorean theorem states that the side lengths of a triangle can be found with A² + B² = C². For the value of A, we will use 24. For the value of B, we will use 25. 24² is 576. 25² is 625. If you add 576 and 625, you get 1201. Then, you find the square root of 1201. That is approximately 34.66. 34.66 ft. is the length of the final side.