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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:144BZ GHM

Order: 18

Horizontal side: 144 Vertical side: 144

Elements: 4√2, 7√2, 14, 11√2, 18, 20, 22, 16√2, 20√2, 32, 26√2, 30√2, 46, 52, 46√2, 72, 98, 72√2.

Code: 985 0 46 724 72 72 723 144 72 264 98 46 223 124 50 202 144 52 201 144 72 523 144 0 40 102 50 114 113 39 183 124 32 467 0 46 460 46 46 304 76 16 143 106 32 72 113 39 166 76 16 327 92 32

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)

98
72√2
72
26√2
22
20√2
20
52
4√2
11√2
18
46
46√2
30√2
14
7√2
16√2
32