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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:36AA GHM

Order: 19

Horizontal side: 36 Vertical side: 36

Elements: 1, 2, 2√2, 4, 3√2, 5, 4√2, 6, 7, 8, 9, 7√2, 8√2, 9√2, 11√2, 16, 18, 20, 18√2.

Code: 207 0 36 86 12 28 167 20 36 186 18 18 53 12 23 65 12 22 76 0 16 47 7 23 40 11 23 11 12 23 34 15 19 116 7 11 22 20 20 87 7 19 185 18 0 75 0 9 25 7 9 97 0 9 90 9 9

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)

20
8√2
16
18√2
5
6
7√2
4
4√2
1
3√2
11√2
2√2
8
18
7
2
9
9√2