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Derivative UltraPerfect Isosceles Right Triangled Square

Title: _rt 18:90JO6of8 GHM

Order: 18

Horizontal side: 90 Vertical side: 90

Elements: 5, 7, 5√2, 7√2, 10, 14, 10√2, 15, 20, 21, 28, 20√2, 21√2, 30, 40, 30√2, 60, 45√2.

Code: 605 0 30 454 45 45 283 90 62 70 62 62 71 69 62 217 69 62 216 69 41 103 55 45 52 60 50 141 69 55 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
45√2
28
7√2
7
21
21√2
10
5√2
14
5
10√2
15
40
20√2
30
30√2
20