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Derivative UltraPerfect Isosceles Right Triangled Square

Title: _rt 18:90JQ7of8 GHM

Order: 18

Horizontal side: 90 Vertical side: 90

Elements: 1√2, 2, 2√2, 3√2, 5, 4√2, 6, 5√2, 10√2, 15, 20, 20√2, 30, 40, 30√2, 35√2, 60, 45√2.

Code: 605 0 30 454 45 45 356 55 55 106 45 45 155 55 40 57 55 40 56 55 35 22 62 38 21 62 40 12 63 39 44 66 36 403 70 0 202 90 20 30 63 39 67 60 36 305 0 0 304 30 0 203 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)

60
45√2
35√2
10√2
15
5
5√2
2√2
2
1√2
4√2
40
20√2
3√2
6
30
30√2
20