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

Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:110AL GHM

Order: 19

Horizontal side: 110 Vertical side: 110

Elements: 1√2, 2, 2√2, 7, 7√2, 8√2, 14, 10√2, 12√2, 13√2, 20, 20√2, 33, 35, 45, 55, 45√2, 65, 55√2.

Code: 655 0 45 554 55 55 553 110 55 104 65 45 80 75 55 351 110 55 20 67 47 21 69 47 12 70 46 141 83 47 72 90 40 130 70 46 457 0 45 450 45 45 124 57 33 73 90 33 202 110 20 331 90 33 203 110 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)

65
55√2
55
10√2
8√2
35
2√2
2
1√2
14
7√2
13√2
45
45√2
12√2
7
20√2
33
20