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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:142BW GHM

Order: 18

Horizontal side: 142 Vertical side: 142

Elements: 6, 6√2, 12, 9√2, 18, 23, 25, 18√2, 27, 23√2, 25√2, 42, 46, 48, 48√2, 71, 94, 71√2.

Code: 945 0 48 714 71 71 713 142 71 234 94 48 233 117 48 252 142 46 251 142 71 487 0 48 480 48 48 421 90 48 182 108 30 271 117 48 463 142 0 183 108 12 92 117 21 67 90 12 66 90 6 127 96 12

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)

94
71√2
71
23√2
23
25√2
25
48
48√2
42
18√2
27
46
18
9√2
6
6√2
12