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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:220BY GHM

Order: 19

Horizontal side: 220 Vertical side: 220

Elements: 2, 4√2, 8, 8√2, 12√2, 13√2, 14√2, 16√2, 28, 28√2, 40, 54, 56, 82, 69√2, 110, 82√2, 138, 110√2.

Code: 1385 0 82 1104 110 110 1103 220 110 284 138 82 283 166 82 142 180 96 541 220 110 166 164 80 405 180 56 825 0 0 824 82 0 136 151 69 27 164 82 122 176 68 690 151 69 40 176 68 80 172 64 81 180 64 561 220 56

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)

138
110√2
110
28√2
28
14√2
54
16√2
40
82
82√2
13√2
2
12√2
69√2
4√2
8√2
8
56