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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:74AC1of2 GHM

Order: 19

Horizontal side: 74 Vertical side: 74

Elements: 3, 4, 4√2, 8, 6√2, 12, 14, 10√2, 17, 18, 14√2, 20, 22, 17√2, 20√2, 34, 27√2, 40, 37√2.

Code: 405 0 34 374 37 37 276 47 47 100 47 47 31 40 37 177 40 37 170 57 37 345 0 0 221 22 34 187 22 34 143 40 20 46 22 16 85 26 12 144 40 6 200 54 20 201 74 20 45 22 12 121 34 12 62 40 6

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
37√2
27√2
10√2
3
17
17√2
34
22
18
14
4√2
8
14√2
20√2
20
4
12
6√2