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

Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:142CC GHM

Order: 18

Horizontal side: 142 Vertical side: 142

Elements: 6, 6√2, 12, 11√2, 19, 14√2, 22, 19√2, 20√2, 22√2, 26√2, 38, 45, 52, 45√2, 71, 97, 71√2.

Code: 975 0 45 714 71 71 713 142 71 264 97 45 383 123 33 192 142 52 191 142 71 523 142 0 457 0 45 450 45 45 204 65 25 66 79 39 127 85 45 146 65 25 65 79 33 225 79 11 224 101 11 114 90 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)

97
71√2
71
26√2
38
19√2
19
52
45
45√2
20√2
6√2
12
14√2
6
22
22√2
11√2