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

Primitive Perfect Isosceles Right Triangled Square

Title: _r 18:94AF1of4 GHM

Order: 18

Horizontal side: 94 Vertical side: 94

Elements: 5, 6, 6√2, 7√2, 12, 14, 12√2, 18, 19, 14√2, 24, 19√2, 28, 28√2, 42, 52, 40√2, 47√2.

Code: 527 0 94 280 52 94 281 80 94 142 94 80 141 94 94 406 54 40 243 24 42 67 24 66 66 24 60 127 30 66 126 30 54 195 42 47 194 61 47 185 24 42 57 42 47 470 47 47 74 54 40 427 0 42

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)

52
28√2
28
14√2
14
40√2
24
6
6√2
12
12√2
19
19√2
18
5
47√2
7√2
42