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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:138AM2of2 GHM

Order: 19

Horizontal side: 138 Vertical side: 138

Elements: 1√2, 6√2, 7√2, 11, 12, 14, 11√2, 14√2, 22, 28, 22√2, 33, 28√2, 41, 55, 69, 55√2, 83, 69√2.

Code: 835 0 55 694 69 69 693 138 69 144 83 55 143 97 55 72 104 62 411 138 69 60 104 62 10 98 56 121 110 56 282 138 28 557 0 55 550 55 55 331 88 55 117 88 55 110 99 55 227 88 44 226 88 22 283 138 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)

83
69√2
69
14√2
14
7√2
41
6√2
1√2
12
28√2
55
55√2
33
11
11√2
22
22√2
28