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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:136BS GHM

Order: 19

Horizontal side: 136 Vertical side: 136

Elements: 2, 2√2, 4, 6, 6√2, 10√2, 11√2, 20, 15√2, 22, 21√2, 42, 52, 42√2, 62, 47√2, 52√2, 74, 84.

Code: 845 0 52 741 74 136 627 74 136 476 89 89 150 89 89 62 80 68 61 80 74 27 80 74 20 82 74 221 104 74 112 115 63 47 80 72 106 74 62 205 84 52 210 115 63 525 0 0 524 52 0 420 94 42 421 136 42

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)

84
74
62
47√2
15√2
6√2
6
2
2√2
22
11√2
4
10√2
20
21√2
52
52√2
42√2
42