¶ Tetrahedron
Index Entry
Tetrahedron:
“I am just going to give you tetrahedron. Around any one vertex in the tetrahedron there are three planes. You can see them going around. Looking down on the top of a tetrahedron you see three planes and three edges. You see three faces and three edges around any one vertex. That seems very symmetrical and nice. You say that is logical. How can it be anything else. If you think about it any more it is rather strange because it is three edges and three faces out of an inventory of four faces and six edges. They are not the same inventories. It is interesting that you could come out with symmetry around each of these points out of a dissimilar inventory.”
