Squaring.net >> IRTS >> PPIRTSS >> Order 19

Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:86AU1of4 GHM

Order: 19

Horizontal side: 86 Vertical side: 86

Elements: 1, 3, 3√2, 6, 5√2, 6√2, 9, 10, 11, 12, 11√2, 21, 22, 32, 27√2, 43, 32√2, 54, 43√2.

Code: 545 0 32 434 43 43 433 86 43 114 54 32 113 65 32 62 71 37 211 86 43 63 71 31 32 74 34 33 74 31 125 74 22 325 0 0 324 32 0 56 59 27 105 64 22 11 65 32 91 74 31 270 59 27 221 86 22

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
43√2
43
11√2
11
6√2
21
6
3√2
3
12
32
32√2
5√2
10
1
9
27√2
22