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Primitive Perfect Isosceles Right Triangled Square

Title: _r 19:220CL4of4 GHM

Order: 19

Horizontal side: 220 Vertical side: 220

Elements: 2√2, 4, 4√2, 6, 6√2, 7√2, 12, 9√2, 14, 32, 32√2, 46, 55√2, 78, 71√2, 110, 78√2, 142, 110√2.

Code: 1425 0 78 1104 110 110 1103 220 110 324 142 78 323 174 78 467 174 110 556 165 55 785 0 0 784 78 0 76 149 71 147 156 78 26 168 76 47 170 78 46 170 74 123 168 64 62 174 70 710 149 71 63 174 64 94 165 55

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)

142
110√2
110
32√2
32
46
55√2
78
78√2
7√2
14
2√2
4
4√2
12
6√2
71√2
6
9√2