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Bifrustum
Polyhedron made by joining two identical frusta at their bases / From Wikipedia, the free encyclopedia
In geometry, an n-agonal bifrustum is a polyhedron composed of three parallel planes of n-agons, with the middle plane largest and usually the top and bottom congruent.
Quick Facts Family of bifrusta, Faces ...
Family of bifrusta | |
---|---|
![]() Example: hexagonal bifrustum | |
Faces | 2 n-gons 2n trapezoids |
Edges | 5n |
Vertices | 3n |
Symmetry group | Dnh, [n,2], (*n22) |
Surface area | |
Volume | |
Dual polyhedron | Elongated bipyramids |
Properties | convex |
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It can be constructed as two congruent frusta combined across a plane of symmetry, and also as a bipyramid with the two polar vertices truncated.[1]
They are duals to the family of elongated bipyramids.