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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:80BC GHM

Order: 18

Horizontal side: 80 Vertical side: 80

Elements: 1√2, 2, 2√2, 4, 3√2, 5√2, 10, 10√2, 13√2, 14√2, 20, 26, 27, 20√2, 27√2, 40, 53, 40√2.

Code: 535 0 27 404 40 40 403 80 40 104 50 30 103 60 30 207 60 40 206 60 20 34 53 27 26 54 28 47 56 30 56 55 25 146 40 14 25 54 26 277 0 27 270 27 27 134 40 14 265 54 0 14 55 25

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)

53
40√2
40
10√2
10
20
20√2
3√2
2√2
4
5√2
14√2
2
27
27√2
13√2
26
1√2