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Derivative UltraPerfect Isosceles Right Triangled Square

Title: __t 18:240JE2of2 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 46 180 116 87 184 120 86 184 112 167 192 120 166 192 104 327 208 120 606 180 60 282 208 88 905 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
8
8√2
16
16√2
32
60√2
28√2
90
90√2
15√2
75√2