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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:68AZ GHM

Order: 19

Horizontal side: 68 Vertical side: 68

Elements: 1√2, 2, 3, 4√2, 5√2, 8, 7√2, 8√2, 13, 14, 16, 18, 13√2, 21, 17√2, 21√2, 34, 47, 34√2.

Code: 475 0 21 344 34 34 343 68 34 174 51 17 163 68 18 217 0 21 210 21 21 134 34 8 133 47 8 52 52 16 16 51 17 27 52 18 76 47 11 147 54 18 183 68 0 35 47 8 84 42 0 83 50 0 42 54 4

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)

47
34√2
34
17√2
16
21
21√2
13√2
13
5√2
1√2
2
7√2
14
18
3
8√2
8
4√2