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Primitive Perfect Isosceles Right Triangled Square

Title: _r 18:89AB4of4 GHM

Order: 18

Horizontal side: 89 Vertical side: 89

Elements: 4√2, 5√2, 8, 10, 8√2, 10√2, 16, 19, 20, 15√2, 27, 23√2, 35, 27√2, 43, 46, 35√2, 54.

Code: 545 0 35 461 46 89 232 69 66 431 89 89 156 54 51 205 69 46 86 46 43 165 54 35 105 69 36 104 79 36 193 89 27 54 74 31 355 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
23√2
43
15√2
20
8√2
16
10
10√2
19
5√2
35
35√2
8
4√2
27√2
27