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Derivative UltraPerfect Isosceles Right Triangled Square

Title: __p 18:120JL4of4 GHM

Order: 18

Horizontal side: 120 Vertical side: 120

Elements: 1√2, 3√2, 6, 6√2, 12, 9√2, 10√2, 11√2, 18, 20, 30, 40, 30√2, 50, 40√2, 60, 80, 60√2.

Code: 805 0 40 604 60 60 603 120 60 201 80 60 102 90 50 114 91 49 123 102 48 187 102 60 306 90 30 503 90 0 12 91 49 92 99 39 64 96 42 63 102 42 34 99 39 405 0 0 404 40 0 305 90 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)

80
60√2
60
20
10√2
11√2
12
18
30√2
50
1√2
9√2
6√2
6
3√2
40
40√2
30