The answer depends on the units used for the question. Are they 12 inches * 12 inches * 30 inches or are they feet, or metres or miles?
Volume = pi*272*54/12 cubic feet = 19,274 US gallons, approx.
24 inches x 12 inches x 9 inches = 1.5 cubic feet = 11.2 US gallons, approx.
42
Convert everything to feet, then use the formula for the volume of a cylinder. Since the answer will be in cubic feet, you'll then have to convert it to gallons.
The answer depends on the units used for the question. Are they 12 inches * 12 inches * 30 inches or are they feet, or metres or miles?
Multiply 36*12*16 = 6,912 cubic inches 12*12*12 = 1729 cubic inches per cubic feet 6912 cubic inches/1729 cubic inches per cubic feet - 4 cubic feet 4 cubic feet * 7.48051948 gallons per cubic foot = 29.90 gallons 7.48051948 Gallons per cubic foot
Volume = pi*272*54/12 cubic feet = 19,274 US gallons, approx.
24 inches x 12 inches x 9 inches = 1.5 cubic feet = 11.2 US gallons, approx.
18.7013 US gallons.
This question cannot be answered because there are no units for the measurements. It should be obvious to anybody that a capacity of a container which is 12 inches by 12 inches by 31 inches will be very different from that for one which is 12 feet by 12 feet by 31 feet, for example.
42
Convert everything to feet, then use the formula for the volume of a cylinder. Since the answer will be in cubic feet, you'll then have to convert it to gallons.
A pipe that is 30 inches in diameter and 12 feet long has a volume of: 440.6 US gallons of water.
1 foot = 12 inches
1 gallon = 231 cubic inches1,728 cubic inches = 1 cubic foot3 cubic feet = 5,184 cubic inches = 22.442 gallons. (rounded)
12 feet 7 inches = 151 inches.