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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:72AF GHM

Order: 19

Horizontal side: 72 Vertical side: 72

Elements: 2, 2√2, 4, 3√2, 4√2, 6, 8, 10, 8√2, 10√2, 16, 20, 16√2, 26, 20√2, 23√2, 26√2, 46, 36√2.

Code: 465 0 26 364 36 36 166 56 56 203 56 36 165 56 40 85 56 32 84 64 32 206 52 20 104 46 26 103 56 26 45 56 28 44 60 28 25 56 26 24 58 26 265 0 0 264 26 0 36 49 23 67 52 26 230 49 23

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)

46
36√2
16√2
20
16
8
8√2
20√2
10√2
10
4
4√2
2
2√2
26
26√2
3√2
6
23√2