Answer:
option (b)
Step-by-step explanation:
The perimeter of a square has the units of ft.
The area of the square has the units of ft^2.
The volume of the cube has the units of ft^3.
Side of cube = 3 ft
Volume of cube is given by
V = side^3
V = 3 x 3 x 3 = 27 ft^3