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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:115AD GHM

Order: 19

Horizontal side: 115 Vertical side: 115

Elements: 12, 10√2, 12√2, 18, 20, 15√2, 24, 25, 18√2, 20√2, 24√2, 25√2, 42, 30√2, 48, 50, 55, 40√2, 50√2.

Code: 557 0 115 400 55 115 304 85 85 206 95 95 106 85 85 205 95 75 150 15 75 504 65 25 503 115 25 187 0 60 186 0 42 127 18 60 120 30 60 247 18 48 246 18 24 485 42 0 425 0 0 254 90 0 253 115 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)

55
40√2
30√2
20√2
10√2
20
15√2
50√2
50
18
18√2
12
12√2
24
24√2
48
42
25√2
25