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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:138AG GHM

Order: 18

Horizontal side: 138 Vertical side: 138

Elements: 5, 6, 5√2, 10, 14, 15, 11√2, 14√2, 15√2, 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 56 86 64 105 91 59 471 138 69 63 86 58 55 86 59 157 86 59 150 101 59 587 0 58 580 58 58 144 72 44 143 86 44 441 116 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
10
47
6
5
15
15√2
58
58√2
14√2
14
44
22√2
22