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

Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:144BJ GHM

Order: 18

Horizontal side: 144 Vertical side: 144

Elements: 7√2, 10√2, 11√2, 13√2, 20, 22, 17√2, 28, 20√2, 22√2, 34, 40, 44, 50, 50√2, 72, 94, 72√2.

Code: 945 0 50 724 72 72 723 144 72 224 94 50 223 116 50 112 127 61 281 144 72 170 127 61 507 0 50 500 50 50 401 90 50 202 110 30 134 103 37 76 103 37 347 110 44 443 144 0 203 110 10 104 100 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)

94
72√2
72
22√2
22
11√2
28
17√2
50
50√2
40
20√2
13√2
7√2
34
44
20
10√2