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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:172BN GHM

Order: 19

Horizontal side: 172 Vertical side: 172

Elements: 1√2, 3, 3√2, 6, 6√2, 12, 10√2, 11√2, 21, 22, 21√2, 22√2, 43√2, 64, 54√2, 86, 64√2, 108, 86√2.

Code: 1085 0 64 864 86 86 863 172 86 224 108 64 123 130 74 215 130 65 214 151 65 436 129 43 100 118 74 64 124 68 63 130 68 34 127 65 33 130 65 14 128 64 116 118 54 227 129 65 645 0 0 644 64 0 540 118 54

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)

108
86√2
86
22√2
12
21
21√2
43√2
10√2
6√2
6
3√2
3
1√2
11√2
22
64
64√2
54√2