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

Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:278AB GHM

Order: 19

Horizontal side: 278 Vertical side: 278

Elements: 2, 2√2, 4, 4√2, 6√2, 7√2, 14, 14√2, 21√2, 42, 42√2, 76, 84, 97, 118, 139, 160, 118√2, 139√2.

Code: 1605 0 118 1394 139 139 1393 278 139 214 160 118 70 181 139 971 278 139 140 174 132 141 188 132 62 194 126 46 190 122 845 194 42 26 188 120 45 190 118 25 188 118 1187 0 118 1180 118 118 761 194 118 424 236 0 423 278 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)

160
139√2
139
21√2
7√2
97
14√2
14
6√2
4√2
84
2√2
4
2
118
118√2
76
42√2
42