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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:104CI GHM

Order: 19

Horizontal side: 104 Vertical side: 104

Elements: 4, 3√2, 4√2, 9, 9√2, 15, 18, 15√2, 18√2, 30, 32, 24√2, 36, 30√2, 44, 32√2, 48, 36√2, 68.

Code: 687 0 104 443 68 60 367 68 104 366 68 68 42 72 64 43 72 60 322 104 32 246 0 36 487 24 60 306 42 30 182 18 18 323 104 0 156 27 15 305 42 0 183 18 0 92 27 9 36 24 12 155 27 0 93 27 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)

68
44
36
36√2
4√2
4
32√2
24√2
48
30√2
18√2
32
15√2
30
18
9√2
3√2
15
9