The formula for the volume of a circular cylinder = Pie (3.1416) x r

in order to calculate the volume of a partially filled circular cylinder you would need to provide me with the exact dimensions and shape to determine if the cylinder is a regular or irregular shape which will be necessary to determine the formula for the volume.

^{2}hin order to calculate the volume of a partially filled circular cylinder you would need to provide me with the exact dimensions and shape to determine if the cylinder is a regular or irregular shape which will be necessary to determine the formula for the volume.