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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:144BA GHM

Order: 18

Horizontal side: 144 Vertical side: 144

Elements: 1, 4, 5, 4√2, 6, 5√2, 14, 11√2, 22, 25, 25√2, 47, 50, 47√2, 50√2, 72, 94, 72√2.

Code: 945 0 50 724 72 72 723 144 72 221 94 72 112 105 61 254 119 47 253 144 47 56 100 56 145 105 47 63 100 50 55 100 51 17 100 51 40 101 51 41 105 51 505 0 0 504 50 0 470 97 47 471 144 47

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)

94
72√2
72
22
11√2
25√2
25
5√2
14
6
5
1
4√2
4
50
50√2
47√2
47