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

Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:146AI GHM

Order: 18

Horizontal side: 146 Vertical side: 146

Elements: 3, 3√2, 6, 9, 9√2, 10√2, 20, 15√2, 20√2, 30, 40, 43, 48, 58, 73, 58√2, 88, 73√2.

Code: 885 0 58 734 73 73 733 146 73 154 88 58 63 103 67 32 106 70 431 146 73 33 106 67 405 106 30 90 97 67 91 106 67 587 0 58 580 58 58 481 106 58 205 106 10 204 126 10 303 146 0 104 116 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)

88
73√2
73
15√2
6
3√2
43
3
40
9√2
9
58
58√2
48
20
20√2
30
10√2