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Primitive Perfect Isosceles Right Triangled Square

Title: _r 19:216DV1of4 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 72 107 146 74 106 146 64 207 156 74 206 156 54 407 176 74 743 216 0 14 145 71 383 146 34 717 0 71 710 71 71 374 108 34 305 146 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
10
10√2
20
20√2
40
74
1√2
38
71
71√2
37√2
30
34√2