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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:70AJ GHM

Order: 18

Horizontal side: 70 Vertical side: 70

Elements: 3√2, 4√2, 6, 6√2, 7√2, 11, 9√2, 11√2, 18, 19, 22, 16√2, 18√2, 19√2, 32, 36, 40, 32√2.

Code: 407 0 70 223 40 48 112 51 59 111 51 70 197 51 70 196 51 51 46 47 55 70 47 55 186 0 30 367 18 48 160 54 48 320 38 32 321 70 32 185 0 12 62 6 6 94 9 3 63 6 0 32 9 3

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)

40
22
11√2
11
19
19√2
4√2
7√2
18√2
36
16√2
32√2
32
18
6√2
9√2
6
3√2