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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:172AD2of4 GHM

Order: 18

Horizontal side: 172 Vertical side: 172

Elements: 3√2, 4√2, 6, 8, 6√2, 12, 9√2, 18, 13√2, 26, 30√2, 60, 43√2, 56√2, 60√2, 86, 112, 86√2.

Code: 1125 0 60 864 86 86 863 172 86 261 112 86 125 112 74 304 142 56 436 129 43 65 112 68 64 118 68 96 115 65 185 124 56 85 112 60 34 115 65 605 0 0 604 60 0 40 120 60 560 116 56 134 129 43

The properties below may precede order:side in a tiling's title:

Credit for Discovery

Just three people are credited with the discovery of Primitive Perfects:

Geoffrey H. Morley (GHM, England)

Jasper D. Skinner, II (JDS, United States)

William T. Tutte (WTT, Canada, 1917-2002) (15:44AI, 17:136AJ and 19:56AJ only)

112
86√2
86
26
12
30√2
43√2
6
6√2
9√2
18
8
3√2
60
60√2
4√2
56√2
13√2