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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:138AE GHM

Order: 18

Horizontal side: 138 Vertical side: 138

Elements: 2, 2√2, 3, 4, 3√2, 5, 7√2, 11√2, 22, 22√2, 36, 44, 47, 58, 69, 80, 58√2, 69√2.

Code: 805 0 58 694 69 69 693 138 69 114 80 58 43 91 65 32 94 66 471 138 69 33 94 63 445 94 22 70 87 65 24 89 63 23 91 63 51 94 63 587 0 58 580 58 58 361 94 58 224 116 0 223 138 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)

80
69√2
69
11√2
4
3√2
47
3
44
7√2
2√2
2
5
58
58√2
36
22√2
22