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Derivative UltraPerfect Isosceles Right Triangled Square

Title: prt 18:180JD3of8 GHM

Order: 18

Horizontal side: 180 Vertical side: 180

Elements: 1√2, 2, 2√2, 3√2, 4√2, 6, 10√2, 20, 20√2, 30, 40, 40√2, 60, 80, 60√2, 70√2, 120, 90√2.

Code: 1205 0 60 904 90 90 706 110 110 203 110 90 102 120 100 46 116 96 202 140 80 63 116 90 32 119 93 10 119 93 20 118 92 21 120 92 301 120 90 803 140 0 402 180 40 605 0 0 604 60 0 403 180 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)

120
90√2
70√2
20
10√2
4√2
20√2
6
3√2
1√2
2√2
2
30
80
40√2
60
60√2
40