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Primitive Perfect Isosceles Right Triangled Square

Title: _r 19:84AN6of16 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 36 147 54 42 140 68 42 84 76 34 83 84 34 182 18 18 274 27 9 363 54 0 44 80 30 43 84 30 24 82 28 303 84 0 287 54 28 183 18 0 92 27 9

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