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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:58AC GHM

Order: 19

Horizontal side: 58 Vertical side: 58

Elements: 1√2, 3, 3√2, 6, 6√2, 7√2, 9√2, 14, 10√2, 18, 14√2, 20, 21, 22, 17√2, 18√2, 20√2, 30, 22√2.

Code: 305 0 28 204 20 38 203 40 38 187 40 58 186 40 40 12 41 39 170 41 39 104 30 28 142 14 14 211 21 28 37 21 28 36 21 25 67 24 28 92 30 16 64 30 16 220 36 22 221 58 22 143 14 0 72 21 7

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)

30
20√2
20
18
18√2
1√2
17√2
10√2
14√2
21
3
3√2
6
9√2
6√2
22√2
22
14
7√2