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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:74AP GHM

Order: 18

Horizontal side: 74 Vertical side: 74

Elements: 1√2, 2, 2√2, 8, 8√2, 9√2, 13, 14, 11√2, 12√2, 13√2, 14√2, 24, 25, 25√2, 37, 49, 37√2.

Code: 495 0 25 374 37 37 373 74 37 124 49 25 96 52 28 132 74 24 131 74 37 10 52 28 20 51 27 21 53 27 82 61 19 257 0 25 250 25 25 144 39 11 143 53 11 243 74 0 83 61 11 114 50 0

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)

49
37√2
37
12√2
9√2
13√2
13
1√2
2√2
2
8√2
25
25√2
14√2
14
24
8
11√2