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

Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:144AK GHM

Order: 18

Horizontal side: 144 Vertical side: 144

Elements: 1√2, 6, 6√2, 12, 12√2, 13√2, 14√2, 19√2, 28, 30, 25√2, 28√2, 44, 58, 72, 58√2, 86, 72√2.

Code: 865 0 58 724 72 72 723 144 72 144 86 58 136 87 59 192 119 53 441 144 72 10 87 59 587 0 58 580 58 58 301 88 58 122 100 46 250 119 53 123 100 34 65 88 28 64 94 28 284 116 0 283 144 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)

86
72√2
72
14√2
13√2
19√2
44
1√2
58
58√2
30
12√2
25√2
12
6
6√2
28√2
28