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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:74AB GHM

Order: 18

Horizontal side: 74 Vertical side: 74

Elements: 3√2, 4√2, 6, 8, 6√2, 8√2, 12, 16, 20, 24, 17√2, 26, 28, 20√2, 34, 26√2, 28√2, 34√2.

Code: 345 0 40 344 34 40 60 68 74 61 74 74 163 62 52 82 70 60 121 74 68 83 70 52 42 74 56 286 46 28 266 20 26 247 46 52 202 20 20 174 17 23 285 46 0 36 17 23 265 20 0 203 20 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)

34
34√2
6√2
6
16
8√2
12
8
4√2
28√2
26√2
24
20√2
17√2
28
3√2
26
20