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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:180AY GHM

Order: 19

Horizontal side: 180 Vertical side: 180

Elements: 1√2, 6, 6√2, 12, 12√2, 20, 26, 21√2, 22√2, 32, 44, 46, 56, 46√2, 68, 56√2, 68√2, 112, 90√2.

Code: 1125 0 68 904 90 90 466 134 134 443 134 90 465 134 88 224 112 68 16 133 89 210 133 89 201 154 88 267 154 88 323 180 56 685 0 0 684 68 0 120 136 68 121 148 68 62 154 62 61 154 68 560 124 56 561 180 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)

112
90√2
46√2
44
46
22√2
1√2
21√2
20
26
32
68
68√2
12√2
12
6√2
6
56√2
56