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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:90AQ GHM

Order: 18

Horizontal side: 90 Vertical side: 90

Elements: 2√2, 3, 4, 4√2, 6√2, 7√2, 11, 8√2, 14, 10√2, 14√2, 28, 34, 28√2, 31√2, 34√2, 56, 45√2.

Code: 565 0 34 454 45 45 316 59 59 143 59 45 72 66 52 100 66 52 111 56 45 37 56 45 42 60 38 41 60 42 22 62 40 84 68 34 140 76 42 60 62 40 345 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
45√2
31√2
14
7√2
10√2
11
3
4√2
4
2√2
8√2
14√2
6√2
34
34√2
28√2
28