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

Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:218BH GHM

Order: 19

Horizontal side: 218 Vertical side: 218

Elements: 4, 10√2, 18, 20, 22, 20√2, 22√2, 39, 40, 44, 35√2, 39√2, 60, 70, 74, 74√2, 109, 144, 109√2.

Code: 1445 0 74 1094 109 109 1093 218 109 354 144 74 390 179 109 391 218 109 747 0 74 740 74 74 441 118 74 222 140 52 221 140 74 47 140 74 187 140 70 403 158 30 607 158 70 703 218 0 204 138 10 203 158 10 104 148 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)

144
109√2
109
35√2
39√2
39
74
74√2
44
22√2
22
4
18
40
60
70
20√2
20
10√2