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

Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:80BO GHM

Order: 19

Horizontal side: 80 Vertical side: 80

Elements: 1, 1√2, 2, 3, 4, 5√2, 10, 11√2, 16, 12√2, 13√2, 22, 24, 17√2, 28, 28√2, 40, 52, 40√2.

Code: 525 0 28 404 40 40 403 80 40 124 52 28 23 64 38 35 64 37 161 80 40 103 62 28 52 67 33 14 63 37 13 64 37 41 67 37 132 80 24 223 67 11 287 0 28 280 28 28 174 45 11 243 80 0 114 56 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)

52
40√2
40
12√2
2
3
16
10
5√2
1√2
1
4
13√2
22
28
28√2
17√2
24
11√2