It depends what it is.
48ft*72ft = 3456ft2
16
16 yards
3600
48 feet is 14.63 meters.
4800 square feet.
48 feet is 14.63 meters.
There are 16 yards in 48 feet
240
The answer for that is 48ft^3
Empty, anywhere between 30,000 - 35,000.
A square has 4 equal sides, so 4 x 12ft = 48ft