But this area is the area of spherical segment limited by 2 conical surfaces, not 2 directions, and not 2 equal areas.
2.
Among such objects were the finite size bodies of revolution ( disk, finite cylinder with flat bases, finite cone, finite paraboloid, spherical segment, finite thin wire ).
3.
If the radius of the sphere is called " R ", the radius of the spherical segment bases " r " 1 and " r " 2, and the height of the segment ( the distance from one parallel plane to the other ) called " h ", the volume of the spherical segment is then:
4.
If the radius of the sphere is called " R ", the radius of the spherical segment bases " r " 1 and " r " 2, and the height of the segment ( the distance from one parallel plane to the other ) called " h ", the volume of the spherical segment is then:
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