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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:178BF7of8 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 61 203 145 69 332 178 56 331 178 89 80 125 69 81 133 69 42 137 65 64 139 63 463 145 23 43 137 61 22 139 63 617 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
20
33√2
33
8√2
8
4√2
6√2
46
4
2√2
61
61√2
38√2
56
23√2