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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:220DK GHM

Order: 19

Horizontal side: 220 Vertical side: 220

Elements: 2, 2√2, 4, 4√2, 14√2, 15√2, 28, 21√2, 36, 28√2, 42, 50, 64, 50√2, 64√2, 78√2, 128, 92√2, 156.

Code: 1567 0 220 1283 156 92 642 220 156 641 220 220 786 142 78 286 0 64 505 28 42 504 78 42 920 128 92 144 142 78 285 0 36 45 28 38 44 32 38 216 15 21 427 36 42 25 28 36 24 30 36 365 0 0 154 15 21

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
128
64√2
64
78√2
28√2
50
50√2
92√2
14√2
28
4
4√2
21√2
42
2
2√2
36
15√2