Final answer:
The missing side length of the right triangle cannot be determined without additional information.
Step-by-step explanation:
The missing side length of the right triangle can be found using the Pythagorean theorem. The Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides. So, if the lengths of the other two sides are known, we can solve for the missing side length. In this case, we don't have enough information to determine the missing side length.