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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:148AF GHM

Order: 18

Horizontal side: 148 Vertical side: 148

Elements: 4, 4√2, 6, 8, 8√2, 11√2, 12√2, 14√2, 23√2, 34, 40, 34√2, 40√2, 68, 74, 54√2, 80, 74√2.

Code: 805 0 68 744 74 74 743 148 74 61 80 74 112 91 63 344 114 40 343 148 40 687 0 68 146 54 54 47 68 68 46 68 64 87 72 68 86 72 60 122 80 52 230 91 63 540 54 54 404 108 0 403 148 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)

80
74√2
74
6
11√2
34√2
34
68
14√2
4
4√2
8
8√2
12√2
23√2
54√2
40√2
40