divide volume by height then by pi.
height has to be given. or volume. volume of a cylinder is v = (pi r ^2) h or diameter times height.
Volume = Pir2 X height Diameter = 2r Pi = 3.1416 Solve for diameter Volume/height = 3.1416(diameter/2)2 (square root of (Volume/height/3.1416)) X 2 = diameter of the cylinder base
You cannot determine the height and diameter from just the volume because there is an almost infinite number of combinations of height and diameter that could create a particular volume.
You cannot find the height and diameter of a cylinder by knowing the volume only. There are infinite combinations of height and diameter that will result in the same volume. You need to know either the diameter or the height in addition to the volume to calculate the remaining unknown. Volume = pi/4 * d2 * h (note: pi/4 * d2 is the same as pi * r2)
diameter=9 height=11
38.465
Volume is 90.4779 mm3
You know that for a cylinder: V = (pi)r2h where V is the volume, r is the radius, and h is the height. You also know that diameter = 2r. So, plug in your known values for volume, height, and pi in the first equation to solve for r. Then, multiply r by 2 to find the diameter.
Easy, you find the area of the circle (Pi X Radius squared) and then multiply it by the height. Your question asks about using the diameter...the radius is half of the diameter.
Volume = pi*radius2*height Volume = 147*pi => 461.8141201 cubic meters
Around 77 cm2. volume=(one third)(pi)(radius squared)(height)