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In geometry, the truncated tetrapentagonal tiling is a uniform tiling of the hyperbolic plane. It has Schläfli symbol of t0,1,2 or tr. == Symmetry== There are four small index subgroup constructed from () by mirror removal and alternation. In these images fundamental domains are alternately colored black and white, and mirrors exist on the boundaries between colors. A radical subgroup is constructed (), index 10, as (), (5 *2) with gyration points removed, becoming orbifold ( *22222), and its direct subgroup ()+, index 20, becomes orbifold (22222). 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「truncated tetrapentagonal tiling」の詳細全文を読む スポンサード リンク
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