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Primitive Perfect Isosceles Right Triangled Square

Title: _r 19:216DV3of4 GHM

Order: 19

Horizontal side: 216 Vertical side: 216

Elements: 1√2, 2, 10, 10√2, 20, 20√2, 30, 38, 40, 34√2, 37√2, 70, 71, 72, 74, 71√2, 72√2, 144, 145.

Code: 1455 0 71 1441 144 216 722 216 144 721 216 216 703 216 74 23 146 72 202 166 54 301 176 74 407 176 74 743 216 0 14 145 71 383 146 34 717 0 71 710 71 71 374 108 34 203 166 34 102 176 44 103 176 34 344 142 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)

145
144
72√2
72
70
2
20√2
30
40
74
1√2
38
71
71√2
37√2
20
10√2
10
34√2