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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:146AD GHM

Order: 18

Horizontal side: 146 Vertical side: 146

Elements: 6√2, 7√2, 12, 12√2, 24, 28, 24√2, 28√2, 42, 52, 38√2, 56, 42√2, 62, 45√2, 66, 52√2, 56√2.

Code: 627 0 146 560 62 146 561 118 146 282 146 118 281 146 146 663 146 52 66 0 84 127 6 90 126 6 78 247 18 90 246 18 66 452 87 45 384 80 52 422 42 42 74 87 45 520 94 52 521 146 52 423 42 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)

62
56√2
56
28√2
28
66
6√2
12
12√2
24
24√2
45√2
38√2
42√2
7√2
52√2
52
42