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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:30AA JDS

Order: 19

Horizontal side: 30 Vertical side: 30

Elements: 2, 2√2, 3, 4, 3√2, 5, 4√2, 6, 7, 5√2, 8, 6√2, 9, 8√2, 12, 9√2, 14, 16, 15√2.

Code: 165 0 14 154 15 15 123 30 18 36 15 15 65 18 12 64 24 12 96 21 9 145 0 0 84 8 6 83 16 6 25 16 12 52 21 7 51 21 12 37 21 12 95 21 0 73 21 0 44 12 2 43 16 2 24 14 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)

16
15√2
12
3√2
6
6√2
9√2
14
8√2
8
2
5√2
5
3
9
7
4√2
4
2√2