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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:120BC GHM

Order: 19

Horizontal side: 120 Vertical side: 120

Elements: 1√2, 2, 4, 6, 7√2, 10, 12√2, 24, 17√2, 21√2, 24√2, 34, 38, 40, 42, 48, 40√2, 80, 60√2.

Code: 805 0 40 604 60 60 483 120 72 126 60 60 245 72 48 244 96 48 343 120 38 74 79 41 63 86 42 107 86 48 16 79 41 27 80 42 423 82 0 212 103 21 41 86 42 405 0 0 404 40 0 174 103 21 383 120 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)

80
60√2
48
12√2
24
24√2
34
7√2
6
10
1√2
2
42
21√2
4
40
40√2
17√2
38