Final answer:
The perimeter of the rectangular sandbox is 113.4 meters.
Step-by-step explanation:
The perimeter of a rectangle is given by the formula:
P = 2(L + W)
where P is the perimeter, L is the length, and W is the width.
In this case, the length of the sandbox is given as 39.2 meters and the width is given as 17.5 meters. Plugging these values into the formula, we get:
P = 2(39.2 + 17.5) = 2(56.7) = 113.4 meters