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small icosihemidodecahedron
In geometry, the small icosihemidodecahedron is a uniform star polyhedron, indexed as U49. Its vertex figure alternates two regular triangles and decagons as a crossed quadrilateral.
It is given a Wythoff symbol, 3/2 3 | 5, but that construction represents a double covering of this model.
It is a hemipolyhedron with its six decagonal faces passing through the model center.
== Related polyhedra ==
It shares its edge arrangement with the icosidodecahedron (its convex hull, having the triangular faces in common), and with the small dodecahemidodecahedron (having the decagonal faces in common).
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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