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

Primitive Perfect Isosceles Right Triangled Square

Title: _r 19:122BI1of4 GHM

Order: 19

Horizontal side: 122 Vertical side: 122

Elements: 3√2, 6, 6√2, 9, 7√2, 12, 9√2, 14, 12√2, 28, 20√2, 28√2, 40, 47, 34√2, 54, 47√2, 68, 61√2.

Code: 685 0 54 614 61 61 476 75 75 143 75 61 475 75 28 74 68 54 126 63 49 545 0 0 344 34 20 30 63 49 60 60 46 61 66 46 92 75 37 206 34 20 405 54 0 121 66 40 93 75 28 284 94 0 283 122 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)

68
61√2
47√2
14
47
7√2
12√2
54
34√2
3√2
6√2
6
9√2
20√2
40
12
9
28√2
28