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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:66AF GHM

Order: 19

Horizontal side: 66 Vertical side: 66

Elements: 1√2, 2, 2√2, 4, 4√2, 6√2, 12, 10√2, 12√2, 14√2, 21, 24, 17√2, 18√2, 27, 28, 21√2, 24√2, 42.

Code: 427 0 66 240 42 66 241 66 66 186 0 24 285 18 14 271 45 42 217 45 42 216 45 21 122 12 12 45 45 17 25 45 15 24 47 15 170 49 17 14 46 14 42 22 10 144 32 0 123 12 0 62 18 6 100 22 10

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)

42
24√2
24
18√2
28
27
21
21√2
12√2
4
2
2√2
17√2
1√2
4√2
14√2
12
6√2
10√2