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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:110AX GHM

Order: 18

Horizontal side: 110 Vertical side: 110

Elements: 7√2, 8√2, 14, 10√2, 16, 14√2, 20, 20√2, 21√2, 30, 26√2, 28√2, 40, 42, 34√2, 40√2, 42√2, 68.

Code: 687 0 110 406 28 70 422 110 68 421 110 110 286 0 42 405 28 30 346 76 34 212 21 21 80 76 34 305 28 0 204 48 10 203 68 10 167 68 26 260 84 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√2
42
28√2
40
34√2
21√2
8√2
30
20√2
20
16
26√2
7√2
14√2
14
10√2