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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:90AU GHM

Order: 19

Horizontal side: 90 Vertical side: 90

Elements: 1√2, 2, 2√2, 3√2, 6, 6√2, 8√2, 12, 9√2, 16, 14√2, 28, 34, 28√2, 40, 31√2, 34√2, 50, 56.

Code: 565 0 34 501 50 90 407 50 90 316 59 59 90 59 59 22 52 48 21 52 50 12 53 49 161 68 50 82 76 42 30 53 49 67 50 46 66 50 40 125 56 34 140 76 42 345 0 0 344 34 0 280 62 28 281 90 28

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)

56
50
40
31√2
9√2
2√2
2
1√2
16
8√2
3√2
6
6√2
12
14√2
34
34√2
28√2
28