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Derivative UltraPerfect Isosceles Right Triangled Square

Title: _rt 18:90JQ2of8 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 46 51 51 155 55 40 63 51 45 32 54 48 10 54 48 20 53 47 21 55 47 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
4√2
15
6
3√2
1√2
2√2
2
5√2
5
10√2
40
20√2
30
30√2
20