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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:138AN GHM

Order: 18

Horizontal side: 138 Vertical side: 138

Elements: 2, 4√2, 10, 10√2, 14√2, 20, 15√2, 17√2, 18√2, 20√2, 34, 35, 34√2, 52, 69, 52√2, 86, 69√2.

Code: 865 0 52 694 69 69 693 138 69 174 86 52 150 103 69 351 138 69 23 88 52 107 88 54 106 88 44 207 98 54 200 118 54 527 0 52 520 52 52 184 70 34 46 84 48 140 84 48 344 104 0 343 138 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)

86
69√2
69
17√2
15√2
35
2
10
10√2
20
20√2
52
52√2
18√2
4√2
14√2
34√2
34