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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:140AB GHM

Order: 18

Horizontal side: 140 Vertical side: 140

Elements: 7√2, 12, 20, 26, 28, 20√2, 32, 26√2, 28√2, 40, 42, 52, 56, 58, 42√2, 49√2, 72, 56√2.

Code: 727 0 140 523 72 88 262 98 114 261 98 140 422 140 98 421 140 140 583 98 56 496 91 49 200 20 88 201 40 88 327 40 88 407 0 68 123 40 56 286 0 28 567 28 56 560 84 56 74 91 49 285 0 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)

72
52
26√2
26
42√2
42
58
49√2
20√2
20
32
40
12
28√2
56
56√2
7√2
28