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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:220CH GHM

Order: 19

Horizontal side: 220 Vertical side: 220

Elements: 2√2, 4, 4√2, 6√2, 7√2, 12, 9√2, 14, 13√2, 19√2, 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 78 196 155 91 467 174 110 556 165 55 130 155 91 785 0 0 784 78 0 76 149 71 145 156 64 121 168 78 62 174 72 46 170 68 710 149 71 26 168 66 45 170 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
19√2
46
55√2
13√2
78
78√2
7√2
14
12
6√2
4√2
71√2
2√2
4
9√2