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Primitive Perfect Isosceles Right Triangled Square

Title: _r 19:78AS1of4 GHM

Order: 19

Horizontal side: 78 Vertical side: 78

Elements: 2, 2√2, 4, 3√2, 4√2, 6, 14, 10√2, 15, 12√2, 20, 15√2, 24, 20√2, 30, 24√2, 39, 48, 39√2.

Code: 485 0 30 394 39 39 393 78 39 124 51 27 150 63 39 151 78 39 305 0 0 204 20 10 203 40 10 27 40 30 20 42 30 61 48 30 32 51 27 47 40 28 40 44 28 147 40 24 240 54 24 241 78 24 104 30 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
39√2
39
12√2
15√2
15
30
20√2
20
2
2√2
6
3√2
4
4√2
14
24√2
24
10√2