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

Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:68AK GHM

Order: 19

Horizontal side: 68 Vertical side: 68

Elements: 2, 2√2, 4, 3√2, 4√2, 5√2, 7√2, 10, 8√2, 10√2, 11√2, 16, 18, 16√2, 26, 34, 26√2, 42, 34√2.

Code: 425 0 26 344 34 34 343 68 34 84 42 26 56 45 29 72 57 27 181 68 34 30 45 29 110 57 27 267 0 26 260 26 26 104 36 16 103 46 16 27 46 26 20 48 26 42 50 20 41 50 24 164 52 0 163 68 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)

42
34√2
34
8√2
5√2
7√2
18
3√2
11√2
26
26√2
10√2
10
2
2√2
4√2
4
16√2
16