Squaring.net >> IRTS >> PPIRTSS >> Order 18

Primitive Perfect Isosceles Right Triangled Square

Title: _r 18:108AG2of4 GHM

Order: 18

Horizontal side: 108 Vertical side: 108

Elements: 8√2, 11√2, 16, 13√2, 14√2, 22, 16√2, 24, 26, 28, 24√2, 26√2, 28√2, 30√2, 39√2, 56, 41√2, 42√2.

Code: 422 42 66 284 28 80 283 56 80 392 95 69 264 82 82 263 108 82 134 95 69 416 67 41 144 42 66 563 56 24 110 67 41 227 56 30 300 78 30 247 0 24 240 24 24 164 40 8 163 56 8 84 48 0

The properties below may precede order:side in a tiling's title:

Credit for Discovery

Just three people are credited with the discovery of Primitive Perfects:

Geoffrey H. Morley (GHM, England)

Jasper D. Skinner, II (JDS, United States)

William T. Tutte (WTT, Canada, 1917-2002) (15:44AI, 17:136AJ and 19:56AJ only)

42√2
28√2
28
39√2
26√2
26
13√2
41√2
14√2
56
11√2
22
30√2
24
24√2
16√2
16
8√2