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Derivative UltraPerfect Isosceles Right Triangled Square

Title: _rt 18:126JJ1of8 GHM

Order: 18

Horizontal side: 126 Vertical side: 126

Elements: 7, 7√2, 9√2, 14, 18, 14√2, 21, 18√2, 28, 36, 28√2, 42, 36√2, 54, 56, 42√2, 49√2, 84.

Code: 845 0 42 364 36 90 363 72 90 547 72 126 496 77 77 184 54 72 183 72 72 140 77 77 94 63 63 211 84 63 77 84 63 70 91 63 147 84 56 563 98 0 282 126 28 425 0 0 424 42 0 283 126 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)

84
36√2
36
54
49√2
18√2
18
14√2
9√2
21
7
7√2
14
56
28√2
42
42√2
28