Answer:
19 feet
The length of the storage area is 19 feet.
Explanation:
Volume of a rectangular prism (a box shape) is given by:
Volume = length * width * height
We are given three out of four of these numbers. Fill them in and solve for the missing number.
570 = x * 6 * 5
570 = 30x
divide by 30
19 = x
The length is 19 feet. The storage area is 19 feet long.