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| Grand 120-cell ： ウィキペディア英語版 |
Grand 120-cell
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|bgcolor=#e7dcc3|Edges||720
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|bgcolor=#e7dcc3|Vertices||120
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|bgcolor=#e7dcc3|Vertex figure||
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|bgcolor=#e7dcc3|Schläfli symbol||
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|bgcolor=#e7dcc3|Coxeter-Dynkin diagram||
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|bgcolor=#e7dcc3|Symmetry group||H4, ()
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|bgcolor=#e7dcc3|Dual|| Great stellated 120-cell
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|bgcolor=#e7dcc3|Properties|| Regular
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In geometry, the grand 120-cell or grand polydodecahedron is a regular star 4-polytope with Schläfli symbol . It is one of 10 regular Schläfli-Hess polytopes.
It is one of four ''regular star 4-polytopes'' discovered by Ludwig Schläfli. It is named by John Horton Conway, extending the naming system by Arthur Cayley for the Kepler-Poinsot solids.
==Related polytopes==
It has the same edge arrangement as the 600-cell, icosahedral 120-cell and the same face arrangement as the great 120-cell.
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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