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Primitive Perfect Isosceles Right Triangled Square

Title: _e 19:285AA GHM

Order: 19

Horizontal side: 285 Vertical side: 285

Elements: 28, 30, 25√2, 28√2, 42, 50, 56, 40√2, 42√2, 70, 50√2, 56√2, 80, 98, 70√2, 112, 145, 105√2, 215.

Code: 2157 0 285 506 165 235 707 215 285 706 215 215 256 140 210 505 165 185 305 215 185 1123 140 98 1052 245 105 801 245 185 402 285 145 1453 285 0 286 0 70 565 28 42 564 84 42 983 140 0 285 0 42 425 0 0 424 42 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)

215
50√2
70
70√2
25√2
50
30
112
105√2
80
40√2
145
28√2
56
56√2
98
28
42
42√2