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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:40AF JDS

Order: 19

Horizontal side: 40 Vertical side: 40

Elements: 1, 1√2, 2, 2√2, 3, 4, 3√2, 4√2, 6, 8, 6√2, 8√2, 12, 14, 16, 13√2, 20, 26, 20√2.

Code: 265 0 14 204 20 20 203 40 20 84 28 12 83 36 12 42 40 16 41 40 20 163 40 0 145 0 0 134 13 1 20 26 14 66 18 6 127 24 12 36 15 3 65 18 0 23 15 1 35 15 0 14 14 0 13 15 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)

26
20√2
20
8√2
8
4√2
4
16
14
13√2
2√2
6√2
12
3√2
6
2
3
1√2
1