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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:304AI GHM

Order: 19

Horizontal side: 304 Vertical side: 304

Elements: 3√2, 6, 6√2, 12, 18, 20√2, 21√2, 40, 30√2, 40√2, 60, 80, 92, 102, 122, 152, 122√2, 182, 152√2.

Code: 1825 0 122 1524 152 152 1523 304 152 304 182 122 66 206 146 125 212 140 921 304 152 36 203 143 65 206 140 210 203 143 181 224 140 805 224 60 1227 0 122 1220 122 122 1021 224 122 405 224 20 404 264 20 603 304 0 204 244 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)

182
152√2
152
30√2
6√2
12
92
3√2
6
21√2
18
80
122
122√2
102
40
40√2
60
20√2