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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:120AP GHM

Order: 18

Horizontal side: 120 Vertical side: 120

Elements: 8, 6√2, 8√2, 12, 12√2, 13√2, 24, 26, 21√2, 34, 36, 26√2, 42, 44, 52, 60, 68, 60√2.

Code: 687 0 120 443 68 76 527 68 120 606 60 60 243 24 52 367 24 76 423 60 34 82 68 68 81 68 76 605 60 0 262 26 26 124 12 40 123 24 40 64 18 34 214 39 13 343 60 0 263 26 0 132 39 13

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
44
52
60√2
24
36
42
8√2
8
60
26√2
12√2
12
6√2
21√2
34
26
13√2