Answer:
9 feet.
Step-by-step explanation:
A storage box can hold 810 cubic feet of sugar means volume of the container is 810 feet³.
Now we know value of a container is represented by
V = (length × width × depth)
810 = 10 × 9 × depth
Depth = [tex]\frac{810}{10\times 9}[/tex]
= 9 feet.
Therefore, depth of the container is 9 feet.