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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:212AB GHM

Order: 18

Horizontal side: 212 Vertical side: 212

Elements: 4, 10, 10√2, 13√2, 20, 26, 30, 24√2, 26√2, 48, 58, 43√2, 48√2, 82, 106, 82√2, 130, 106√2.

Code: 1305 0 82 1064 106 106 1063 212 106 244 130 82 203 154 86 102 164 96 581 212 106 103 164 86 482 212 48 43 134 82 307 134 86 436 121 43 827 0 82 820 82 82 264 108 56 263 134 56 134 121 43 483 212 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)

130
106√2
106
24√2
20
10√2
58
10
48√2
4
30
43√2
82
82√2
26√2
26
13√2
48