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Derivative UltraPerfect Isosceles Right Triangled Square

Title: __p 18:120JL1of4 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 36 99 57 67 102 60 66 102 54 127 108 60 306 90 30 90 99 57 503 90 0 12 91 49 187 90 48 405 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
3√2
6
6√2
12
30√2
9√2
50
1√2
18
40
40√2
30