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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:220CW GHM

Order: 19

Horizontal side: 220 Vertical side: 220

Elements: 3√2, 4√2, 6, 8, 6√2, 8√2, 12, 18, 17√2, 34, 38√2, 55, 76, 55√2, 89, 76√2, 110, 144, 110√2.

Code: 1445 0 76 1104 110 110 1103 220 110 341 144 110 185 144 92 384 182 72 556 165 55 82 152 84 121 156 92 62 162 86 61 162 92 32 165 89 893 165 0 172 182 72 83 152 76 42 156 80 765 0 0 764 76 0 555 165 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)

144
110√2
110
34
18
38√2
55√2
8√2
12
6√2
6
3√2
89
17√2
8
4√2
76
76√2
55