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Derivative UltraPerfect Isosceles Right Triangled Square

Title: _rt 18:90JJ2of8 GHM

Order: 18

Horizontal side: 90 Vertical side: 90

Elements: 5, 5√2, 9, 10, 9√2, 10√2, 15, 18, 20, 27, 20√2, 30, 36, 27√2, 40, 30√2, 35√2, 60.

Code: 605 0 30 274 27 63 273 54 63 367 54 90 356 55 55 181 45 63 92 54 54 91 54 63 103 55 45 52 60 50 53 60 45 102 70 40 151 60 45 403 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
27√2
27
36
35√2
18
9√2
9
10
5√2
5
10√2
15
40
20√2
30
30√2
20