To find the length of the diagonal fence that stretches from one corner to the opposite corner of a rectangle, we can use the Pythagorean theorem, which states that the square of the length of the diagonal (hypotenuse) is equal to the sum of the squares of the lengths of the two other sides (legs) of the rectangle.
In this case, the rectangle has dimensions 24 meters by 45 meters. Therefore, the length of the diagonal fence is:
Diagonal fence = √(24^2 + 45^2) meters
Simplifying the equation, we get:
Diagonal fence = √(576 + 2025) meters
Diagonal fence = √2601 meters
Diagonal fence = 51 meters
So Steve will need 51 meters of fencing to stretch diagonally from one corner to the opposite corner of his backyard.