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Derivative UltraPerfect Isosceles Right Triangled Square

Title: _rt 18:90JJ7of8 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 30 361 36 90 275 36 63 274 63 63 356 55 55 97 36 63 96 36 54 187 45 63 103 55 45 155 55 40 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
36
27
27√2
35√2
9
9√2
18
10
15
5√2
5
10√2
40
20√2
30
30√2
20