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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:108AN GHM

Order: 19

Horizontal side: 108 Vertical side: 108

Elements: 3√2, 4√2, 6, 6√2, 9√2, 10√2, 18, 14√2, 20, 28, 20√2, 30, 34, 40, 30√2, 48, 54, 60, 54√2.

Code: 605 0 48 544 54 54 543 108 54 104 64 44 140 74 54 341 108 54 485 0 0 304 30 18 303 60 18 42 64 44 287 60 40 403 88 0 202 108 20 203 108 0 181 48 18 92 57 9 64 54 12 63 60 12 34 57 9

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)

60
54√2
54
10√2
14√2
34
48
30√2
30
4√2
28
40
20√2
20
18
9√2
6√2
6
3√2