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There are an infinite number of cylinders that hold one gallon. The volume of a cylinder is a function of its height as well as its diameter. If you double the height, you double its capacity. If you double the radius, you quadruple the capacity. So, you could have a very tall, thin cylinder or a short, wide one.
There are 231 cubic inches in a gallon. so multiply the radius by the height and the pie. There are 231 cubic inches in a gallon. so multiply the radius by the height and the pie.
Surface Area = 590.93 ft2
pi x radius x height = volume
To find the volume of the cylinder, multiply the height of it by the area of its base (its bottom). The volume of a cylinder is expressed as V = h(pi r^2). If you want to find an approximate volume for the substance in the cylinder, multiply the height of the substance by the base of the cylinder. Again, V = h(pi r^2).
37.69911184 rounded to 38 square feet
More data is required. I assume the drum has the form of a cylinder; the volume of a cylinder is calculated as pi x radius squared times height. Different combinations of radios and height can give the same volume.
Volume = pi525 = 393 cubic meters rounded to the nearest integer
It is: pi*72*10 = 2155 cubic meters rounded to nearest integer
Calculate the area of one circular face of the cylinder [pi (r2)], then multiply by the height of the cylinder. The answer will be approximate as pi is neither a terminating or repeating decimal. V=volume r=radius h=height V=[pi(r2)] h = [pi(32)] 3 =[pi (9)] 3 =(28.274) 3 =84.82 cm3 So, the volume of a cylinder with a radius and height of 3 cm will be approximately 84.82 cm3.
The height of a cylinder all depends on what cylinder you are talking about. There is only an exact height if you have measured it yourself or someone has already measured it for you.