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

Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:94AK GHM

Order: 18

Horizontal side: 94 Vertical side: 94

Elements: 1√2, 3, 3√2, 6, 6√2, 7√2, 8√2, 12, 14, 19, 14√2, 28, 33, 40, 47, 54, 40√2, 47√2.

Code: 545 0 40 474 47 47 473 94 47 74 54 40 86 53 39 195 61 28 331 94 47 407 0 40 400 40 40 121 52 40 62 58 34 14 53 39 63 58 28 32 61 31 33 61 28 281 80 28 142 94 14 143 94 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)

54
47√2
47
7√2
8√2
19
33
40
40√2
12
6√2
1√2
6
3√2
3
28
14√2
14