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

Primitive Perfect Isosceles Right Triangled Square

Title: _r 19:156DB2of4 GHM

Order: 19

Horizontal side: 156 Vertical side: 156

Elements: 3√2, 6, 6√2, 10, 12, 9√2, 10√2, 12√2, 20, 15√2, 42, 52, 42√2, 62, 72, 52√2, 57√2, 84, 104.

Code: 1045 0 52 841 84 156 727 84 156 576 99 99 150 99 99 62 90 78 94 93 75 120 102 84 121 114 84 422 156 42 63 90 72 32 93 75 201 104 72 102 114 62 101 114 72 623 114 0 525 0 0 524 52 0 423 156 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)

104
84
72
57√2
15√2
6√2
9√2
12√2
12
42√2
6
3√2
20
10√2
10
62
52
52√2
42