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

Primitive Perfect Isosceles Right Triangled Square

Title: _r 19:76AK4of4 GHM

Order: 19

Horizontal side: 76 Vertical side: 76

Elements: 4√2, 6, 8, 6√2, 8√2, 10√2, 12√2, 18, 20, 15√2, 24, 28, 20√2, 21√2, 30, 24√2, 36, 28√2, 40.

Code: 407 0 76 246 16 52 212 61 55 361 76 76 150 61 55 126 4 40 245 16 28 40 4 40 66 40 34 307 46 40 206 56 20 87 0 36 80 8 36 65 40 28 287 0 28 280 28 28 181 46 28 106 46 10 205 56 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)

40
24√2
21√2
36
15√2
12√2
24
4√2
6√2
30
20√2
8
8√2
6
28
28√2
18
10√2
20