For example, the second question is the height of the four cones A-CBB 1C 1. The volume of the four cones A-CBB 1C 1 can be obtained by volume subtraction, which is naturally obtained.
Thirdly, when calculating the volume, the height of pituitary gland is A 1E, which is very convenient to calculate. It is also necessary to prove that the heights of parallelogram ACC 1A 1 and parallelogram ABB 1A 1 are higher than the sine value of AA 1 multiplied by 60 degrees.