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Primitive Perfect Isosceles Right Triangled Square

Title: _r 18:216AG1of4 GHM

Order: 18

Horizontal side: 216 Vertical side: 216

Elements: 10√2, 14√2, 28, 21√2, 22√2, 28√2, 42, 44, 32√2, 56, 42√2, 64, 86, 88, 64√2, 65√2, 130, 108√2.

Code: 1305 0 86 1084 108 108 646 152 152 443 152 108 645 152 88 224 130 86 106 142 98 140 142 98 324 184 56 883 216 0 865 0 0 654 65 21 426 86 42 287 128 84 280 156 84 567 128 56 216 65 21 425 86 0

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)

130
108√2
64√2
44
64
22√2
10√2
14√2
32√2
88
86
65√2
42√2
28
28√2
56
21√2
42