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Derivative UltraPerfect Isosceles Right Triangled Square

Title: __t 18:240JE1of2 GHM

Order: 18

Horizontal side: 240 Vertical side: 240

Elements: 4, 4√2, 8, 8√2, 16, 15√2, 16√2, 30, 32, 28√2, 30√2, 60√2, 90, 75√2, 120, 90√2, 150, 120√2.

Code: 1505 0 90 1204 120 120 1203 240 120 304 150 90 303 180 90 47 180 120 40 184 120 284 212 92 606 180 60 87 180 116 80 188 116 167 180 108 160 196 108 327 180 92 905 0 0 904 90 0 156 165 75 750 165 75

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)

150
120√2
120
30√2
30
4
4√2
28√2
60√2
8
8√2
16
16√2
32
90
90√2
15√2
75√2