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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:84BA2of2 GHM

Order: 19

Horizontal side: 84 Vertical side: 84

Elements: 3, 3√2, 5, 6, 5√2, 6√2, 9, 10, 12, 10√2, 12√2, 17, 16√2, 24, 32, 24√2, 32√2, 48, 72.

Code: 727 0 84 120 72 84 121 84 84 240 60 72 241 84 72 160 36 48 481 84 48 173 20 15 327 20 32 320 52 32 36 0 12 65 3 9 64 9 9 50 15 15 51 20 15 35 0 9 100 10 10 101 20 10 97 0 9

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)

72
12√2
12
24√2
24
16√2
48
17
32
32√2
3√2
6
6√2
5√2
5
3
10√2
10
9