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Derivative UltraPerfect Isosceles Right Triangled Square

Title: _rt 18:90JQ4of8 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 63 55 49 155 55 40 40 49 49 34 52 46 26 53 47 16 52 46 25 53 45 54 50 40 53 55 40 104 60 30 403 70 0 202 90 20 305 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
6
15
4√2
3√2
2√2
1√2
2
5√2
5
10√2
40
20√2
30
30√2
20