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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:80AY4of4 GHM

Order: 18

Horizontal side: 80 Vertical side: 80

Elements: 2, 2√2, 3, 4, 3√2, 5, 4√2, 7√2, 11√2, 18, 22, 18√2, 29, 22√2, 40, 29√2, 51, 40√2.

Code: 515 0 29 404 40 40 403 80 40 114 51 29 180 62 40 181 80 40 297 0 29 290 29 29 74 36 22 30 43 29 31 46 29 57 46 29 40 40 26 41 44 26 22 46 24 21 46 26 224 58 0 223 80 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)

51
40√2
40
11√2
18√2
18
29
29√2
7√2
3√2
3
5
4√2
4
2√2
2
22√2
22