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

Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:142AN GHM

Order: 18

Horizontal side: 142 Vertical side: 142

Elements: 8, 9, 7√2, 8√2, 14, 16, 14√2, 24, 28, 33, 24√2, 28√2, 43, 57, 71, 57√2, 85, 71√2.

Code: 855 0 57 714 71 71 713 142 71 144 85 57 143 99 57 72 106 64 431 142 71 163 106 48 82 114 56 577 0 57 570 57 57 331 90 57 97 90 57 83 114 48 282 142 28 247 90 48 246 90 24 283 142 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)

85
71√2
71
14√2
14
7√2
43
16
8√2
57
57√2
33
9
8
28√2
24
24√2
28