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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:80AI GHM

Order: 18

Horizontal side: 80 Vertical side: 80

Elements: 5, 5√2, 8, 10, 8√2, 10√2, 16, 12√2, 14√2, 15√2, 16√2, 25, 28, 30, 32, 26√2, 35√2, 40√2.

Code: 402 40 40 354 35 45 56 65 75 107 70 80 106 70 70 303 65 45 152 80 60 323 80 28 51 40 45 257 40 45 146 26 26 86 40 20 165 48 12 164 64 12 283 80 0 260 26 26 85 40 12 124 52 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√2
35√2
5√2
10
10√2
30
15√2
32
5
25
14√2
8√2
16
16√2
28
26√2
8
12√2