出典:Wikipedia
出典:『Wikipedia』 (2011/01/12 05:42 UTC 版)
In geometry, the triheptagonal tiling is a semiregular tiling of the hyperbolic plane, representing a rectified Order-3 heptagonal tiling. There are two triangles and two heptagons alternating on each vertex. It has Schläfli symbol of t1{7,3}.