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

Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:138AL GHM

Order: 19

Horizontal side: 138 Vertical side: 138

Elements: 2√2, 4, 4√2, 6√2, 11, 12, 11√2, 12√2, 22, 24, 22√2, 24√2, 37, 45, 57, 69, 57√2, 81, 69√2.

Code: 815 0 57 694 69 69 693 138 69 124 81 57 123 93 57 62 99 63 451 138 69 20 99 63 40 97 61 41 101 61 375 101 24 577 0 57 570 57 57 224 79 35 223 101 35 114 90 24 113 101 24 244 114 0 243 138 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
69√2
69
12√2
12
6√2
45
2√2
4√2
4
37
57
57√2
22√2
22
11√2
11
24√2
24