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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:90AE GHM

Order: 18

Horizontal side: 90 Vertical side: 90

Elements: 4, 4√2, 8, 11, 12, 10√2, 11√2, 12√2, 20, 22, 24, 31, 22√2, 24√2, 44, 46, 35√2, 45√2.

Code: 467 0 90 240 46 90 241 70 90 122 82 78 201 90 90 123 82 66 85 82 70 45 82 66 44 86 66 356 55 35 220 22 66 221 44 66 112 55 55 111 55 66 317 55 66 106 45 45 450 45 45 447 0 44

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)

46
24√2
24
12√2
20
12
8
4
4√2
35√2
22√2
22
11√2
11
31
10√2
45√2
44