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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:212BN GHM

Order: 19

Horizontal side: 212 Vertical side: 212

Elements: 6, 6√2, 12, 9√2, 18, 21√2, 34, 38, 42, 48, 34√2, 38√2, 54, 68, 72, 72√2, 106, 140, 106√2.

Code: 1405 0 72 1064 106 106 1063 212 106 344 140 72 343 174 72 382 212 68 381 212 106 727 0 72 720 72 72 541 126 72 487 126 72 423 174 30 683 212 0 66 126 24 125 132 18 214 153 9 65 126 18 181 144 18 92 153 9

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)

140
106√2
106
34√2
34
38√2
38
72
72√2
54
48
42
68
6√2
12
21√2
6
18
9√2