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

Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:122CE2of4 GHM

Order: 19

Horizontal side: 122 Vertical side: 122

Elements: 1√2, 2, 2√2, 4, 6, 5√2, 8, 10, 10√2, 17√2, 27, 34, 27√2, 44, 34√2, 61, 44√2, 78, 61√2.

Code: 785 0 44 614 61 61 613 122 61 174 78 44 270 95 61 271 122 61 447 0 44 440 44 44 101 54 44 52 59 39 41 58 44 22 60 42 104 68 34 23 60 40 85 60 34 14 59 39 63 60 34 344 88 0 343 122 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)

78
61√2
61
17√2
27√2
27
44
44√2
10
5√2
4
2√2
10√2
2
8
1√2
6
34√2
34