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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:89AD GHM

Order: 18

Horizontal side: 89 Vertical side: 89

Elements: 4√2, 8, 10, 8√2, 10√2, 16, 18, 19, 20, 15√2, 27, 28, 35, 27√2, 43, 46, 35√2, 54.

Code: 545 0 35 461 46 89 285 46 61 431 89 89 187 46 61 100 64 61 101 74 61 152 89 46 86 46 43 165 54 35 201 74 51 193 89 27 355 0 0 354 35 0 83 70 27 42 74 31 270 62 27 271 89 27

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)

54
46
28
43
18
10√2
10
15√2
8√2
16
20
19
35
35√2
8
4√2
27√2
27