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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:200AW1of2 GHM

Order: 19

Horizontal side: 200 Vertical side: 200

Elements: 3√2, 6, 6√2, 12, 9√2, 15√2, 28, 30, 27√2, 28√2, 44, 56, 42√2, 44√2, 72, 100, 72√2, 128, 100√2.

Code: 1285 0 72 1004 100 100 1003 200 100 284 128 72 283 156 72 442 200 56 441 200 100 727 0 72 720 72 72 424 114 30 276 129 45 563 200 0 150 129 45 301 144 30 92 153 21 30 153 21 60 150 18 61 156 18 127 144 12

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)

128
100√2
100
28√2
28
44√2
44
72
72√2
42√2
27√2
56
15√2
30
9√2
3√2
6√2
6
12