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Primitive Perfect Isosceles Right Triangled Square

Title: _e 18:157AA GHM

Order: 18

Horizontal side: 157 Vertical side: 157

Elements: 14√2, 21, 28, 21√2, 23√2, 25√2, 38, 28√2, 42, 46, 48, 52, 38√2, 42√2, 67, 48√2, 90, 67√2.

Code: 907 0 157 670 90 157 671 157 157 230 23 90 484 71 42 483 119 42 382 157 52 381 157 90 467 0 67 250 46 67 523 157 0 216 0 21 427 21 42 420 63 42 284 91 14 283 119 14 215 0 0 144 105 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)

90
67√2
67
23√2
48√2
48
38√2
38
46
25√2
52
21√2
42
42√2
28√2
28
21
14√2