Squaring.net >> IRTS >> PPIRTSS >> Order 19

Primitive Perfect Isosceles Right Triangled Square

Title: _r 19:138BE1of4 GHM

Order: 19

Horizontal side: 138 Vertical side: 138

Elements: 3√2, 6, 5√2, 6√2, 10, 12, 10√2, 20, 15√2, 30, 38, 44, 50, 56, 41√2, 44√2, 50√2, 82, 88.

Code: 885 0 50 821 82 138 412 123 97 561 138 138 50 123 97 303 118 62 107 118 92 100 128 92 207 118 82 383 138 44 66 82 56 125 88 50 154 103 47 505 0 0 504 50 0 63 100 44 32 103 47 440 94 44 441 138 44

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)

88
82
41√2
56
5√2
30
10
10√2
20
38
6√2
12
15√2
50
50√2
6
3√2
44√2
44