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

Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:142AM GHM

Order: 19

Horizontal side: 142 Vertical side: 142

Elements: 3√2, 6, 6√2, 10, 12, 10√2, 11√2, 17, 20, 15√2, 23, 20√2, 40, 51, 61, 71, 81, 61√2, 71√2.

Code: 815 0 61 714 71 71 713 142 71 104 81 61 103 91 61 112 102 60 511 142 71 617 0 61 610 61 61 154 76 46 123 91 49 173 102 43 405 102 20 36 76 46 65 79 43 64 85 43 231 102 43 204 122 0 203 142 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)

81
71√2
71
10√2
10
11√2
51
61
61√2
15√2
12
17
40
3√2
6
6√2
23
20√2
20