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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:80AH GHM

Order: 19

Horizontal side: 80 Vertical side: 80

Elements: 2, 4, 4√2, 7√2, 10, 14, 10√2, 11√2, 18, 20, 22, 24, 28, 20√2, 32, 24√2, 28√2, 40, 40√2.

Code: 405 0 40 404 40 40 286 52 52 323 52 20 285 52 24 225 0 18 204 20 20 47 52 24 240 56 24 241 80 24 21 22 20 107 22 20 106 22 10 207 32 20 185 0 0 114 11 7 46 18 14 76 11 7 145 18 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)

40
40√2
28√2
32
28
22
20√2
4
24√2
24
2
10
10√2
20
18
11√2
4√2
7√2
14