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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:138AF GHM

Order: 18

Horizontal side: 138 Vertical side: 138

Elements: 2√2, 6, 5√2, 10, 10√2, 11√2, 12√2, 14√2, 20, 22, 22√2, 44, 47, 58, 69, 80, 58√2, 69√2.

Code: 805 0 58 694 69 69 693 138 69 114 80 58 50 91 69 471 138 69 63 86 58 107 86 64 106 86 54 205 96 44 587 0 58 580 58 58 144 72 44 26 84 56 120 84 56 441 116 44 222 138 22 223 138 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
5√2
47
6
10
10√2
20
58
58√2
14√2
2√2
12√2
44
22√2
22