1.3962634 cubic feet Nominal
A 16-inch diameter tube that is 200 feet long has a volume of: 279 cubic feet.
1 cubic foot of aluminum weighs 169.344 Lbs
0.0833
75.4 cubic inches.
The formula is pi X radius squared X length. (Assuming the tube is round!) Thus, 2 X 2= 4 X 3.14159 = 12.566 X 240 (Length in inches) = 3015.84 Cubic inches = 1.74528 cubic feet.
1.219197
14.52 inches (rounded)
4 inch diameter hole assumed Take 4 inches as 1/3 foot > volume = pi * r * r * l = 3.1416 *1/6 * 1/6 * 28 = 2.443 cu. feet
Assuming that your tube has an INSIDE diameter of 3 inches, then the volume will be that of a cylinder. V = (pi)r2h = 3.14159x(1.5)2x36 = 254.46879 cubic inches 231 cubic inches = 1 gallon, so divide, 254.46879 / 231 = 1.10159649 round to 1.1 gallons
We need to know the dimensions of the tube. The diameter AND the length of the tube. It takes o.465 yards per foot of length for a tube 4 feet in diameter. .
A cubic inch in a measure of volume - in 3-dimensional space. The only information provided is that for 2 dimensions - that is, an area. It is therefore impossible to give a sensible answer.
The volume is 52.03 cubic feet.