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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:456AA GHM

Order: 19

Horizontal side: 456 Vertical side: 456

Elements: 16, 16√2, 32, 30√2, 32√2, 60, 64, 56√2, 69√2, 112, 120, 90√2, 138, 112√2, 129√2, 198, 168√2, 258, 228√2.

Code: 2585 0 198 2284 228 228 1686 288 288 603 288 228 1122 400 176 304 258 198 906 198 138 1985 0 0 1294 129 69 1123 400 64 562 456 120 696 129 69 1385 198 0 1203 456 0 167 288 64 166 288 48 327 304 64 326 304 32 647 336 64

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)

258
228√2
168√2
60
112√2
30√2
90√2
198
129√2
112
56√2
69√2
138
120
16
16√2
32
32√2
64