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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:220DA GHM

Order: 19

Horizontal side: 220 Vertical side: 220

Elements: 5, 5√2, 10, 10√2, 20, 18√2, 35, 36, 37, 38, 36√2, 37√2, 72, 73, 75, 75√2, 110, 145, 110√2.

Code: 1455 0 75 1104 110 110 1103 220 110 351 145 110 205 145 90 381 183 110 372 220 73 371 220 110 105 145 80 104 155 80 180 165 90 55 145 75 54 150 75 755 0 0 754 75 0 733 220 0 723 147 0 362 183 36 361 183 72

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)

145
110√2
110
35
20
38
37√2
37
10
10√2
18√2
5
5√2
75
75√2
73
72
36√2
36