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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:80AW GHM

Order: 18

Horizontal side: 80 Vertical side: 80

Elements: 5, 5√2, 8, 10, 8√2, 12, 10√2, 15, 16, 12√2, 15√2, 16√2, 28, 32, 25√2, 40, 50, 40√2.

Code: 505 0 30 404 40 40 403 80 40 104 50 30 80 60 40 81 68 40 122 80 28 121 80 40 323 52 0 162 68 16 161 68 32 152 15 15 254 25 5 283 80 0 153 15 0 105 15 5 55 15 0 54 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)

50
40√2
40
10√2
8√2
8
12√2
12
32
16√2
16
15√2
25√2
28
15
10
5
5√2