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Primitive Perfect Isosceles Right Triangled Square

Title: _r 19:216DV2of4 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 54 201 166 74 102 176 64 101 176 74 407 176 74 743 216 0 14 145 71 383 146 34 717 0 71 710 71 71 374 108 34 303 176 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
20
10√2
10
40
74
1√2
38
71
71√2
37√2
30
34√2