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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:189AB GHM

Order: 19

Horizontal side: 189 Vertical side: 189

Elements: 4√2, 8, 8√2, 12√2, 16√2, 26, 28, 26√2, 27√2, 28√2, 40, 54, 40√2, 54√2, 80, 81, 82, 81√2, 135.

Code: 1357 0 189 280 135 189 281 163 189 262 189 163 261 189 189 823 189 81 803 107 81 402 147 121 401 147 161 85 147 153 84 155 153 126 151 149 162 163 137 44 151 149 270 27 81 814 108 0 813 189 0 547 0 54 540 54 54

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)

135
28√2
28
26√2
26
82
80
40√2
40
8
8√2
12√2
16√2
4√2
27√2
81√2
81
54
54√2