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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:156BX GHM

Order: 19

Horizontal side: 156 Vertical side: 156

Elements: 1√2, 2, 2√2, 3√2, 6, 5√2, 6√2, 22, 22√2, 23√2, 34, 44, 33√2, 39√2, 56, 78, 56√2, 100, 78√2.

Code: 1005 0 56 784 78 78 783 156 78 224 100 56 223 122 56 347 122 78 396 117 39 567 0 56 560 56 56 334 89 23 66 116 50 36 113 47 65 116 44 10 113 47 236 89 23 27 112 46 20 114 46 445 112 0 54 117 39

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)

100
78√2
78
22√2
22
34
39√2
56
56√2
33√2
6√2
3√2
6
1√2
23√2
2
2√2
44
5√2