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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:276AC GHM

Order: 19

Horizontal side: 276 Vertical side: 276

Elements: 4, 14√2, 18√2, 28, 21√2, 28√2, 42, 39√2, 56, 40√2, 60, 78, 80, 78√2, 80√2, 120, 138, 156, 138√2.

Code: 1565 0 120 1384 138 138 1383 276 138 184 156 120 140 174 138 421 216 138 212 237 117 601 276 138 43 160 120 287 160 124 280 188 124 1205 0 0 804 80 40 803 160 40 390 237 117 567 160 96 780 198 78 781 276 78 404 120 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)

156
138√2
138
18√2
14√2
42
21√2
60
4
28
28√2
120
80√2
80
39√2
56
78√2
78
40√2