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Primitive Perfect Isosceles Right Triangled Square

Title: _r 19:88AM3of4 GHM

Order: 19

Horizontal side: 88 Vertical side: 88

Elements: 3√2, 6, 8, 6√2, 8√2, 12, 16, 18, 20, 15√2, 24, 18√2, 28, 24√2, 28√2, 40, 42, 48, 40√2.

Code: 485 0 40 421 42 88 182 60 70 181 60 88 287 60 88 286 60 60 156 45 55 205 60 40 30 45 55 67 42 52 66 42 46 125 48 40 405 0 0 404 40 0 163 80 24 82 88 32 83 88 24 240 64 24 241 88 24

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
18√2
18
28
28√2
15√2
20
3√2
6
6√2
12
40
40√2
16
8√2
8
24√2
24