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Derivative UltraPerfect Isosceles Right Triangled Square

Title: dpt 18:260JC2of2 GHM

Order: 18

Horizontal side: 260 Vertical side: 260

Elements: 9√2, 18, 18√2, 27√2, 40, 30√2, 50, 36√2, 54, 40√2, 60, 50√2, 80, 60√2, 90√2, 130, 170, 130√2.

Code: 1705 0 90 1304 130 130 1303 260 130 404 170 90 403 210 90 502 260 80 501 260 130 185 0 72 184 18 72 276 9 63 547 36 90 900 90 90 604 150 30 603 210 30 803 260 0 362 36 36 94 9 63 304 180 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)

170
130√2
130
40√2
40
50√2
50
18
18√2
27√2
54
90√2
60√2
60
80
36√2
9√2
30√2