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出典:Wikipedia
出典:『Wikipedia』 (2011/06/23 23:35 UTC 版)
In geometry, the triangular tiling is one of the three regular tilings of the Euclidean plane. Because the internal angle of the equilateral triangle is 60 degrees, six triangles at a point occupy a full 360 degrees. The triangular tiling has Schläfli symbol of {3,6}.
Triangular tiling