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

Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:124AD2of2 GHM

Order: 18

Horizontal side: 124 Vertical side: 124

Elements: 1√2, 3√2, 6, 6√2, 12, 9√2, 10√2, 11√2, 20, 22, 20√2, 40, 42, 52, 62, 72, 52√2, 62√2.

Code: 725 0 52 624 62 62 623 124 62 104 72 52 116 71 51 225 82 40 421 124 62 527 0 52 520 52 52 121 64 52 62 70 46 61 70 52 32 73 49 14 71 51 90 73 49 401 104 40 202 124 20 203 124 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
62√2
62
10√2
11√2
22
42
52
52√2
12
6√2
6
3√2
1√2
9√2
40
20√2
20