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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:80AL GHM

Order: 18

Horizontal side: 80 Vertical side: 80

Elements: 5√2, 8, 10, 8√2, 12, 10√2, 16, 12√2, 15√2, 16√2, 25, 28, 30, 32, 35, 25√2, 40, 40√2.

Code: 405 0 40 404 40 40 303 80 50 100 50 50 154 65 35 256 55 25 287 0 40 166 12 24 327 28 40 50 60 40 353 55 0 107 55 35 255 55 0 126 0 12 165 12 8 125 0 0 85 12 0 84 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)

40
40√2
30
10√2
15√2
25√2
28
16√2
32
5√2
35
10
25
12√2
16
12
8
8√2