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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:78AX GHM

Order: 19

Horizontal side: 78 Vertical side: 78

Elements: 2, 2√2, 4, 4√2, 7, 10, 10√2, 15, 11√2, 12√2, 17, 13√2, 15√2, 24, 27, 27√2, 39, 51, 39√2.

Code: 515 0 27 394 39 39 393 78 39 124 51 27 150 63 39 151 78 39 277 0 27 270 27 27 171 44 27 77 44 27 40 48 24 41 52 24 22 54 22 134 65 11 243 78 0 23 54 20 112 65 11 107 44 20 106 44 10

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
39√2
39
12√2
15√2
15
27
27√2
17
7
4√2
4
2√2
13√2
24
2
11√2
10
10√2