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

Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:128AI GHM

Order: 19

Horizontal side: 128 Vertical side: 128

Elements: 5, 7, 5√2, 6√2, 7√2, 10, 14, 10√2, 13√2, 14√2, 20, 20√2, 40, 44, 54, 64, 74, 54√2, 64√2.

Code: 745 0 54 644 64 64 643 128 64 104 74 54 103 84 54 52 89 59 441 128 64 53 89 54 62 95 53 547 0 54 540 54 54 144 68 40 143 82 40 72 89 47 71 89 54 130 95 53 401 108 40 202 128 20 203 128 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)

74
64√2
64
10√2
10
5√2
44
5
6√2
54
54√2
14√2
14
7√2
7
13√2
40
20√2
20