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Primitive Perfect Isosceles Right Triangled Square

Title: _r 19:84AN9of16 GHM

Order: 19

Horizontal side: 84 Vertical side: 84

Elements: 2√2, 4, 4√2, 6, 8, 6√2, 8√2, 9√2, 14, 18, 14√2, 18√2, 28, 30, 36, 27√2, 42, 48, 42√2.

Code: 485 0 36 424 42 42 423 84 42 64 48 36 63 54 36 285 54 14 301 84 42 182 18 18 181 18 36 92 27 27 361 54 36 270 27 27 145 54 0 144 68 0 20 82 14 40 80 12 41 84 12 80 76 8 81 84 8

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
42√2
42
6√2
6
28
30
18√2
18
9√2
36
27√2
14
14√2
2√2
4√2
4
8√2
8