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Cuboctahedral pyramid : ウィキペディア英語版 | Cuboctahedral pyramid
In 4-dimensional geometry, the cuboctahedral pyramid is bounded by one cuboctahedron on the base, 6 square pyramid, and 8 triangular pyramid cells which meet at the apex. It has 38 faces: 32 triangles and 6 squares. It has 32 edges, and 13 vertices. Since a cuboctahedron has a circumradius divided by edge length equal to one, the triangles must be taller than equilateral to create a positive height. The dual to the cuboctahedral pyramid is a ''rhombic dodecahedral pyramid'', seen as an dodecahedral base, and 8 rhombic pyramids meeting at an apex. :160px == References==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Cuboctahedral pyramid」の詳細全文を読む
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