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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:474AA GHM

Order: 19

Horizontal side: 474 Vertical side: 474

Elements: 17√2, 30, 30√2, 60, 44√2, 60√2, 88, 98, 88√2, 132, 98√2, 154, 166, 132√2, 210, 154√2, 166√2, 171√2, 188√2.

Code: 2107 0 474 1660 210 474 1661 376 474 982 474 376 981 474 474 1886 286 188 446 0 264 887 44 308 886 44 220 1542 286 154 1541 286 308 602 346 248 601 346 308 302 376 278 301 376 308 1322 132 132 172 303 171 1710 303 171 1323 132 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)

210
166√2
166
98√2
98
188√2
44√2
88
88√2
154√2
154
60√2
60
30√2
30
132√2
17√2
171√2
132