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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:284AT1of2 GHM

Order: 19

Horizontal side: 284 Vertical side: 284

Elements: 6, 6√2, 12, 12√2, 18, 21√2, 40, 42, 39√2, 40√2, 62, 80, 60√2, 62√2, 102, 142, 102√2, 182, 142√2.

Code: 1825 0 102 1424 142 142 1423 284 142 404 182 102 403 222 102 622 284 80 621 284 142 1027 0 102 1020 102 102 604 162 42 396 183 63 803 284 0 210 183 63 421 204 42 122 216 30 123 216 18 62 222 24 63 222 18 187 204 18

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)

182
142√2
142
40√2
40
62√2
62
102
102√2
60√2
39√2
80
21√2
42
12√2
12
6√2
6
18