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Primitive Perfect Isosceles Right Triangled Square

Title: _r 19:138BE4of4 GHM

Order: 19

Horizontal side: 138 Vertical side: 138

Elements: 3√2, 6, 5√2, 6√2, 10, 12, 10√2, 20, 15√2, 30, 38, 44, 50, 56, 41√2, 44√2, 50√2, 82, 88.

Code: 885 0 50 821 82 138 412 123 97 561 138 138 303 123 67 152 138 82 383 138 44 56 88 62 107 93 67 106 93 57 207 103 67 66 82 56 125 88 50 505 0 0 504 50 0 63 100 44 32 103 47 440 94 44 441 138 44

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)

88
82
41√2
56
30
15√2
38
5√2
10
10√2
20
6√2
12
50
50√2
6
3√2
44√2
44