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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:178BF2of8 GHM

Order: 19

Horizontal side: 178 Vertical side: 178

Elements: 2√2, 4, 4√2, 8, 6√2, 8√2, 20, 23√2, 33, 28√2, 46, 33√2, 38√2, 56, 61, 61√2, 89, 117, 89√2.

Code: 1175 0 61 894 89 89 893 178 89 284 117 61 83 145 81 332 178 56 331 178 89 203 137 61 45 137 77 44 141 77 66 139 75 82 145 69 24 139 75 463 145 23 617 0 61 610 61 61 384 99 23 563 178 0 234 122 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)

117
89√2
89
28√2
8
33√2
33
20
4
4√2
6√2
8√2
2√2
46
61
61√2
38√2
56
23√2