volume of a right circular cylinder is v = (pi)(h)(r^2)
if you want the answer in cubic meters the height and the radius must be in meters.
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Volume of a cylinder is pi x radius2 x height. If measurements are made in feet, volume will be in cubic feet.
The formula for Cylinder:If we have a cylinder with the radius r, pi is 3.1415, and height h, the volume V of the cylinder is:V = (r squared) (pi) (h)If your radius and height are measured in inches, the volume is in cubic inches.
Volume in cubic units = pi*(diameter/2)2*height
Formula for calculating the volume of a cylinder = pi*radius2*length giving your answer in cubic units. Therefore: pi*42*9 = 452.3893421 cubic units. To the nearest whole number: 452 cubic units.
A pipe has the shape of a cylinder; just use the formula for the volume of a cylinder. In metric units, you have the advantage that the units are consistent. For example, if the radius and height of the cylinder are measured in decimeters, the volume will be in cubic decimeters (= liters).