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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:90AF GHM

Order: 18

Horizontal side: 90 Vertical side: 90

Elements: 3√2, 4√2, 8, 8√2, 12, 14, 18, 14√2, 24, 18√2, 28, 30, 24√2, 34, 28√2, 42, 48, 45√2.

Code: 485 0 42 454 45 45 286 62 62 146 48 48 285 62 34 36 45 45 145 48 34 425 0 0 244 24 18 243 48 18 82 56 26 81 56 34 42 60 30 341 90 34 123 60 18 305 60 0 184 42 0 183 60 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)

48
45√2
28√2
14√2
28
3√2
14
42
24√2
24
8√2
8
4√2
34
12
30
18√2
18