Decagonal bipyramid
In geometry, a decagonal bipyramid is one of the infinite set of bipyramids, dual to the infinite prisms. If a decagonal bipyramid is to be face-transitive, all faces must be isosceles triangles. It is an icosahedron, but not the regular one.Images
It can be drawn as a tiling on a sphere, and represents the fundamental domains of , *5.2.2 symmetry.
