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

Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:102AM GHM

Order: 18

Horizontal side: 102 Vertical side: 102

Elements: 3√2, 6, 6√2, 10, 11, 9√2, 10√2, 11√2, 12√2, 20, 20√2, 29, 31, 41, 51, 41√2, 61, 51√2.

Code: 615 0 41 514 51 51 513 102 51 104 61 41 103 71 41 112 82 40 311 102 51 417 0 41 410 41 41 124 53 29 36 62 38 67 65 41 66 65 35 113 82 29 202 102 20 90 62 38 291 82 29 203 102 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)

61
51√2
51
10√2
10
11√2
31
41
41√2
12√2
3√2
6
6√2
11
20√2
9√2
29
20