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Derivative UltraPerfect Isosceles Right Triangled Square

Title: _rt 18:90JO3of8 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 45 216 69 69 143 69 55 215 69 48 103 55 45 155 55 40 74 62 48 73 69 48 281 90 48 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
21√2
14
21
10
15
7√2
7
28
5√2
5
10√2
40
20√2
30
30√2
20