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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:74AM GHM

Order: 19

Horizontal side: 74 Vertical side: 74

Elements: 2, 2√2, 4, 4√2, 7, 6√2, 7√2, 13, 14, 10√2, 17, 13√2, 20, 17√2, 27, 37, 27√2, 47, 37√2.

Code: 475 0 27 374 37 37 373 74 37 104 47 27 170 57 37 171 74 37 277 0 27 270 27 27 131 40 27 77 40 27 45 40 16 44 44 16 60 48 20 134 61 7 203 74 0 25 40 14 24 42 14 141 54 14 72 61 7

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)

47
37√2
37
10√2
17√2
17
27
27√2
13
7
4
4√2
6√2
13√2
20
2
2√2
14
7√2