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Derivative UltraPerfect Isosceles Right Triangled Square

Title: __p 18:120JK2of4 GHM

Order: 18

Horizontal side: 120 Vertical side: 120

Elements: 3√2, 6, 6√2, 10, 12, 9√2, 10√2, 18, 20, 19√2, 30, 40, 30√2, 31√2, 40√2, 60, 80, 60√2.

Code: 805 0 40 604 60 60 603 120 60 201 80 60 102 90 50 101 90 60 307 90 60 306 90 30 196 71 31 405 0 0 404 40 0 310 71 31 125 90 18 65 90 12 64 96 12 96 93 9 185 102 0 34 93 9

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
10
30
30√2
19√2
40
40√2
31√2
12
6
6√2
9√2
18
3√2