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Primitive Perfect Isosceles Right Triangled Square

Title: _r 19:220CL1of4 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 42 160 74 41 160 78 22 162 76 141 174 78 66 156 70 125 162 64 710 149 71 65 156 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
4√2
4
2√2
14
6√2
12
71√2
6
9√2