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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:284AJ GHM

Order: 19

Horizontal side: 284 Vertical side: 284

Elements: 3√2, 6, 6√2, 12, 18, 20, 20√2, 21√2, 40, 30√2, 40√2, 62, 80, 102, 122, 142, 162, 122√2, 142√2.

Code: 1625 0 122 1424 142 142 1423 284 142 204 162 122 203 182 122 625 182 80 1021 284 142 1227 0 122 1220 122 122 304 152 92 216 161 101 30 161 101 60 158 98 61 164 98 185 164 80 121 164 92 801 244 80 402 284 40 403 284 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)

162
142√2
142
20√2
20
62
102
122
122√2
30√2
21√2
3√2
6√2
6
18
12
80
40√2
40