Volume = pi x r^2, so
r^2 = volume/ pi
r = sq root(volume/pi).
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By using this formula: V = radius2 x Pi x height
The volume of a cylinder can be calculated using the formula V = πr^2h, where r is the radius and h is the height. Plugging in the values given (r = 7cm, h = 11cm), the calculation would be V = π(7cm)^2(11cm) = 539π cm^3. Therefore, the volume of the cylinder with a 7cm radius and 11cm height is 539π cubic centimeters.
Volume = 3.14*32*12 = 339.12 cubic feet
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.
The formula for the volume of a cylinder is the area of the base times the height. The base is a circle, with area = pi * radius² = 16pi feet². Multiply that by the height of 10 feet and the answer is 160pi feet³.