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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:138AM GHM

Order: 18

Horizontal side: 138 Vertical side: 138

Elements: 1√2, 2, 5√2, 10, 10√2, 20, 17√2, 18√2, 19√2, 30, 34, 35, 34√2, 52, 69, 52√2, 86, 69√2.

Code: 865 0 52 694 69 69 693 138 69 174 86 52 50 103 69 351 138 69 100 98 64 101 108 64 305 108 34 23 88 52 12 89 53 201 108 54 190 89 53 527 0 52 520 52 52 184 70 34 344 104 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
5√2
35
10√2
10
30
2
1√2
20
19√2
52
52√2
18√2
34√2
34