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)
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
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
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. .
The weight of a steel tube can vary depending on its dimensions and thickness. Generally, a steel tube weighs around 0.283 pounds per cubic inch.
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.