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

Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:138AK1of2 GHM

Order: 18

Horizontal side: 138 Vertical side: 138

Elements: 4, 4√2, 8, 8√2, 12, 13, 13√2, 14√2, 26, 28, 28√2, 41, 43, 55, 69, 55√2, 83, 69√2.

Code: 835 0 55 694 69 69 693 138 69 144 83 55 263 97 43 132 110 56 411 138 69 133 110 43 282 138 28 557 0 55 550 55 55 84 63 47 83 71 47 127 71 55 44 67 43 43 71 43 431 110 43 283 138 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)

83
69√2
69
14√2
26
13√2
41
13
28√2
55
55√2
8√2
8
12
4√2
4
43
28