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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:138AR1of2 GHM

Order: 18

Horizontal side: 138 Vertical side: 138

Elements: 4√2, 8, 8√2, 11√2, 16, 12√2, 22, 20√2, 29, 22√2, 36, 40, 29√2, 49, 69, 49√2, 89, 69√2.

Code: 895 0 49 694 69 69 693 138 69 204 89 49 363 109 33 292 138 40 291 138 69 497 0 49 490 49 49 124 61 37 86 65 41 167 73 49 46 61 37 85 65 33 403 138 0 224 87 11 223 109 11 114 98 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)

89
69√2
69
20√2
36
29√2
29
49
49√2
12√2
8√2
16
4√2
8
40
22√2
22
11√2