A cylinder with the circumference of 9.42 cm on the bottom surface is obliquely cut off from the middle, and the shape after cutting is shown in the figure. The volume after cutting is calculated

A cylinder with the circumference of 9.42 cm on the bottom surface is obliquely cut off from the middle, and the shape after cutting is shown in the figure. The volume after cutting is calculated

Bottom radius r = 9.42 / (2 π) = 1.5cm
The volume of the cylinder 4 cm high below is v = π * R ^ 2 * 4 = 28.26
The volume of the upper half cylinder 2 cm high is v = 0.5 * π * R ^ 2 * 2 = 7.065 (because the upper half is cut obliquely from the middle, the volume after cutting is half of the original)
Total volume 28.26 + 7.065 = 35.325