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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:172AD1of4 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 92 121 77 304 142 56 436 129 43 30 121 77 60 118 74 61 124 74 185 124 56 85 112 60 121 124 68 605 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
9√2
30√2
43√2
3√2
6√2
6
18
8
12
60
60√2
4√2
56√2
13√2