Another considerably unexpected, not to say mindblowing property, in that context: VCone + VHemisphere = VCylinder https://en.wikipedia.org/wiki/Cavalieri%27s

Another considerably unexpected, not to say mindblowing property, in that context: VCone + VHemisphere = VCylinder https://en.wikipedia.org/wiki/Cavalieri%27s_principle https://en.wikipedia.org/wiki/Cavalieri%27s_principle http://blog.zacharyabel.com/tag/cavalieris-principle/ http://blog.zacharyabel.com/tag/cavalieris-principle/