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Derivative UltraPerfect Isosceles Right Triangled Square

Title: dpt 18:260JB1of2 GHM

Order: 18

Horizontal side: 260 Vertical side: 260

Elements: 13√2, 26, 26√2, 40, 30√2, 50, 39√2, 40√2, 60, 50√2, 52√2, 78, 80, 60√2, 90, 90√2, 170, 130√2.

Code: 1705 0 90 1304 130 130 526 208 208 783 208 130 392 247 169 130 247 169 260 234 156 261 260 156 404 170 90 403 210 90 502 260 80 501 260 130 907 0 90 900 90 90 604 150 30 603 210 30 803 260 0 304 180 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
52√2
78
39√2
13√2
26√2
26
40√2
40
50√2
50
90
90√2
60√2
60
80
30√2