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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:216AR GHM

Order: 19

Horizontal side: 216 Vertical side: 216

Elements: 5√2, 6√2, 18, 13√2, 14√2, 18√2, 26, 28, 20√2, 26√2, 40, 40√2, 62, 68, 88, 108, 88√2, 128, 108√2.

Code: 1285 0 88 1084 108 108 1083 216 108 204 128 88 146 134 94 285 148 80 681 216 108 60 134 94 887 0 88 880 88 88 264 114 62 263 140 62 132 153 75 54 153 75 180 158 80 181 176 80 402 216 40 621 176 62 403 216 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)

128
108√2
108
20√2
14√2
28
68
6√2
88
88√2
26√2
26
13√2
5√2
18√2
18
40√2
62
40