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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:108AU GHM

Order: 18

Horizontal side: 108 Vertical side: 108

Elements: 7, 8, 8√2, 10√2, 16, 14√2, 20, 15√2, 16√2, 23, 24, 20√2, 30, 39, 54, 39√2, 69, 54√2.

Code: 695 0 39 544 54 54 543 108 54 154 69 39 140 84 54 241 108 54 80 70 40 81 78 40 202 98 20 201 98 40 102 108 30 397 0 39 390 39 39 231 62 39 77 62 39 167 62 32 166 62 16 303 108 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)

69
54√2
54
15√2
14√2
24
8√2
8
20√2
20
10√2
39
39√2
23
7
16
16√2
30