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Primitive Perfect Isosceles Right Triangled Square

Title: _r 19:138BT3of4 GHM

Order: 19

Horizontal side: 138 Vertical side: 138

Elements: 4√2, 5√2, 8, 10, 10√2, 15, 20, 15√2, 23, 19√2, 30, 31, 38, 46, 54, 46√2, 69, 92, 69√2.

Code: 925 0 46 694 69 69 693 138 69 231 92 69 317 92 69 203 123 49 102 133 59 151 138 69 103 133 49 52 138 54 543 138 0 156 88 34 307 103 49 465 0 0 464 46 0 83 92 38 383 84 0 192 103 19 44 88 34

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)

92
69√2
69
23
31
20
10√2
15
10
5√2
54
15√2
30
46
46√2
8
38
19√2
4√2