If 27 and 45 are two lengths of a right triangle, what is the third length of the right triangle?
There are two possible answers because you didn't say which one was
the hypotenuse:
Case 1: 27 and 45 are both legs and the third side is the hypotenuse:
c² = a² + b²
c² = 27² + 45²
c² = 729 + 2025
c² = 2754
c = 52.47856705 (taking the square root)
Case 2: 45 is the hypotenuse, 27 is one of the legs, and the third
side is the other leg:
c² = a² + b²
45² = 27² + b²
2025 = 729 + b²
2025 - 729 = b²
1296 = b²
36 = b (taking the square root)
Edwin