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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:458AA GHM

Order: 19

Horizontal side: 458 Vertical side: 458

Elements: 31√2, 40√2, 52√2, 80, 84, 94, 98, 104, 80√2, 94√2, 146, 104√2, 156, 120√2, 178, 151√2, 218, 156√2, 182√2.

Code: 2187 0 458 1783 218 280 947 218 458 940 312 458 1461 458 458 847 218 364 1826 120 182 1042 406 260 1041 406 364 522 458 312 1566 302 156 406 0 240 807 40 280 806 40 200 987 120 280 1202 120 120 312 151 151 1565 302 0 1510 151 151

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)

218
178
94
94√2
146
84
182√2
104√2
104
52√2
156√2
40√2
80
80√2
98
120√2
31√2
156
151√2