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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:440AJ GHM

Order: 19

Horizontal side: 440 Vertical side: 440

Elements: 10, 10√2, 20, 20√2, 40, 36√2, 70, 72, 76, 72√2, 73√2, 74√2, 144, 146, 150, 147√2, 150√2, 290, 220√2.

Code: 2905 0 150 2204 220 220 1476 293 293 730 293 293 701 290 220 405 290 180 761 366 220 742 440 146 205 290 160 204 310 160 360 330 180 105 290 150 104 300 150 1505 0 0 1504 150 0 1463 440 0 1443 294 0 722 366 72 721 366 144

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)

290
220√2
147√2
73√2
70
40
76
74√2
20
20√2
36√2
10
10√2
150
150√2
146
144
72√2
72