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

Primitive Perfect Isosceles Right Triangled Square

Title: _r 18:108AA13of16 GHM

Order: 18

Horizontal side: 108 Vertical side: 108

Elements: 8√2, 16, 13√2, 14√2, 22, 16√2, 24, 26, 28, 30, 24√2, 26√2, 28√2, 30√2, 52, 39√2, 56, 42√2.

Code: 567 0 108 426 14 66 265 56 82 264 82 82 396 69 69 525 56 30 134 69 69 140 14 66 287 0 52 280 28 52 227 56 30 300 78 30 301 108 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)

56
42√2
26
26√2
39√2
52
13√2
14√2
28
28√2
22
30√2
30
24
24√2
16√2
16
8√2