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Primitive Perfect Isosceles Right Triangled Square

Title: _r 19:78AZ4of4 GHM

Order: 19

Horizontal side: 78 Vertical side: 78

Elements: 2, 2√2, 4, 3√2, 4√2, 6, 14, 10√2, 12√2, 20, 15√2, 24, 27, 20√2, 30, 24√2, 27√2, 48, 51.

Code: 515 0 27 481 48 78 202 68 58 301 78 78 203 68 38 102 78 48 246 54 24 67 48 38 46 50 34 147 54 38 26 48 32 45 50 30 25 48 30 34 51 27 156 39 15 277 0 27 270 27 27 124 39 15 245 54 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)

51
48
20√2
30
20
10√2
24√2
6
4√2
14
2√2
4
2
3√2
15√2
27
27√2
12√2
24