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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:250AC GHM

Order: 19

Horizontal side: 250 Vertical side: 250

Elements: 8, 20, 20√2, 40, 30√2, 39√2, 60, 47√2, 74, 78, 82, 60√2, 86, 94, 74√2, 78√2, 82√2, 86√2, 90√2.

Code: 947 0 250 740 94 250 741 168 250 827 168 250 826 168 168 200 20 176 201 40 176 605 40 116 604 100 116 900 160 176 81 168 176 782 78 78 401 40 156 304 70 86 474 117 39 860 164 86 861 250 86 783 78 0 392 117 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)

94
74√2
74
82
82√2
20√2
20
60
60√2
90√2
8
78√2
40
30√2
47√2
86√2
86
78
39√2