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

Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:128AN4of4 GHM

Order: 19

Horizontal side: 128 Vertical side: 128

Elements: 2√2, 4, 4√2, 6√2, 11, 12, 11√2, 12√2, 20, 22, 20√2, 22√2, 33, 42, 53, 64, 53√2, 75, 64√2.

Code: 755 0 53 644 64 64 643 128 64 114 75 53 113 86 53 205 86 44 421 128 64 537 0 53 530 53 53 331 86 53 122 98 32 121 98 44 62 104 38 44 102 40 43 106 40 222 128 22 24 104 38 206 86 20 223 128 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)

75
64√2
64
11√2
11
20
42
53
53√2
33
12√2
12
6√2
4√2
4
22√2
2√2
20√2
22