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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:316AD GHM

Order: 19

Horizontal side: 316 Vertical side: 316

Elements: 12, 13√2, 26, 20√2, 40, 48, 36√2, 60, 66, 48√2, 72, 66√2, 96, 79√2, 92√2, 132, 158, 184, 158√2.

Code: 1845 0 132 1584 158 158 1583 316 158 261 184 158 665 184 92 664 250 92 796 237 79 1325 0 0 961 96 132 482 144 84 481 144 132 605 144 72 401 184 132 204 204 72 920 224 92 134 237 79 123 144 72 366 96 36 727 132 72

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)

184
158√2
158
26
66
66√2
79√2
132
96
48√2
48
60
40
20√2
92√2
13√2
12
36√2
72