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Derivative UltraPerfect Isosceles Right Triangled Square

Title: _rt 18:90JO8of8 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 41 106 45 45 155 55 40 141 69 55 57 55 40 56 55 35 107 60 40 403 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√2
15
14
5
5√2
10
40
20√2
30
30√2
20