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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:214AC GHM

Order: 18

Horizontal side: 214 Vertical side: 214

Elements: 12, 12√2, 14√2, 28, 21√2, 28√2, 40, 42, 43, 44, 32√2, 43√2, 64, 75, 75√2, 107, 139, 107√2.

Code: 1395 0 75 1074 107 107 1073 214 107 324 139 75 443 171 63 432 214 64 431 214 107 757 0 75 750 75 75 401 115 75 125 115 63 124 127 63 643 214 0 285 115 35 284 143 35 423 171 21 144 129 21 214 150 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)

139
107√2
107
32√2
44
43√2
43
75
75√2
40
12
12√2
64
28
28√2
42
14√2
21√2