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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:132AD GHM

Order: 18

Horizontal side: 132 Vertical side: 132

Elements: 4√2, 8, 7√2, 8√2, 14, 11√2, 12√2, 15√2, 20√2, 26√2, 40, 32√2, 33√2, 52, 40√2, 66, 80, 66√2.

Code: 805 0 52 664 66 66 663 132 66 141 80 66 112 91 55 264 106 40 336 99 33 150 91 55 525 0 0 324 32 20 120 64 52 84 72 44 83 80 44 44 76 40 206 32 20 407 52 40 400 92 40 74 99 33

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
66√2
66
14
11√2
26√2
33√2
15√2
52
32√2
12√2
8√2
8
4√2
20√2
40
40√2
7√2