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

Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:82AS GHM

Order: 19

Horizontal side: 82 Vertical side: 82

Elements: 3, 3√2, 6, 9, 7√2, 10, 9√2, 14, 10√2, 13√2, 14√2, 20, 21, 15√2, 31, 41, 31√2, 51, 41√2.

Code: 515 0 31 414 41 41 413 82 41 104 51 31 103 61 31 142 75 27 211 82 41 317 0 31 310 31 31 154 46 16 96 52 22 143 75 13 72 82 20 63 52 16 95 52 13 203 82 0 34 49 13 33 52 13 134 62 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)

51
41√2
41
10√2
10
14√2
21
31
31√2
15√2
9√2
14
7√2
6
9
20
3√2
3
13√2