Squaring.net >> IRTS >> PPIRTSS >> Order 18

Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:114AG5of8 GHM

Order: 18

Horizontal side: 114 Vertical side: 114

Elements: 1√2, 2, 2√2, 4, 3√2, 6, 7√2, 10√2, 20, 17√2, 20√2, 37, 40, 47, 57, 47√2, 67, 57√2.

Code: 675 0 47 574 57 57 573 114 57 104 67 47 170 77 57 371 114 57 477 0 47 470 47 47 74 54 40 10 61 47 34 64 44 63 60 40 27 60 46 20 62 46 47 60 44 401 94 40 202 114 20 203 114 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)

67
57√2
57
10√2
17√2
37
47
47√2
7√2
1√2
3√2
6
2
2√2
4
40
20√2
20