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

Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:146AO GHM

Order: 18

Horizontal side: 146 Vertical side: 146

Elements: 4, 4√2, 6, 5√2, 8, 6√2, 8√2, 17√2, 34, 25√2, 39, 31√2, 34√2, 56, 73, 56√2, 90, 73√2.

Code: 905 0 56 734 73 73 733 146 73 174 90 56 50 107 73 391 146 73 40 102 68 41 106 68 62 112 62 61 112 68 342 146 34 80 98 64 81 106 64 316 81 31 567 0 56 560 56 56 254 81 31 343 146 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)

90
73√2
73
17√2
5√2
39
4√2
4
6√2
6
34√2
8√2
8
31√2
56
56√2
25√2
34