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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:110AY GHM

Order: 18

Horizontal side: 110 Vertical side: 110

Elements: 7√2, 14, 10√2, 13√2, 14√2, 20, 26, 20√2, 21√2, 30, 26√2, 28√2, 40, 29√2, 42, 40√2, 42√2, 68.

Code: 687 0 110 406 28 70 427 68 110 426 68 68 286 0 42 405 28 30 292 97 39 212 21 21 130 97 39 305 28 0 204 48 10 203 68 10 260 84 26 261 110 26 70 21 21 140 14 14 141 28 14 104 58 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)

68
40√2
42
42√2
28√2
40
29√2
21√2
13√2
30
20√2
20
26√2
26
7√2
14√2
14
10√2