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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:139AO GHM

Order: 19

Horizontal side: 139 Vertical side: 139

Elements: 1, 1√2, 6, 5√2, 8, 6√2, 9, 8√2, 11√2, 17, 22, 22√2, 39, 39√2, 56, 50√2, 78, 61√2, 100.

Code: 1007 0 139 783 100 61 392 139 100 391 139 139 506 89 50 226 0 39 567 22 61 610 78 61 114 89 50 225 0 17 175 0 0 84 8 9 83 16 9 67 16 17 66 16 11 12 17 10 13 17 9 52 22 5 91 17 9

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
39√2
39
50√2
22√2
56
61√2
11√2
22
17
8√2
8
6
6√2
1√2
1
5√2
9