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Derivative UltraPerfect Isosceles Right Triangled Square

Title: __t 18:280JD2of2 GHM

Order: 18

Horizontal side: 280 Vertical side: 280

Elements: 4, 4√2, 8, 8√2, 16, 12√2, 14√2, 56, 42√2, 49√2, 56√2, 98, 77√2, 112, 126, 154, 112√2, 140√2.

Code: 1545 0 126 1404 140 140 1126 168 168 163 168 152 1125 168 56 120 152 152 84 160 144 83 168 144 44 164 140 43 168 140 144 154 126 426 126 98 1265 0 0 774 77 49 496 77 49 985 126 0 564 224 0 563 280 0

The properties below may precede order:side in a tiling's title:

Credit for Discovery

Geoffrey H. Morley (GHM, England)

Jasper D. Skinner, II (JDS, United States)

154
140√2
112√2
16
112
12√2
8√2
8
4√2
4
14√2
42√2
126
77√2
49√2
98
56√2
56