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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:212AW1of4 GHM

Order: 19

Horizontal side: 212 Vertical side: 212

Elements: 4, 4√2, 8, 8√2, 12, 14, 12√2, 14√2, 26, 26√2, 40, 33√2, 66, 80, 66√2, 73√2, 80√2, 132, 106√2.

Code: 1325 0 80 1064 106 106 736 139 139 330 139 139 264 132 80 140 158 106 141 172 106 405 172 66 40 144 92 41 148 92 125 148 80 124 160 80 263 172 66 80 140 88 81 148 88 805 0 0 804 80 0 660 146 66 661 212 66

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)

132
106√2
73√2
33√2
26√2
14√2
14
40
4√2
4
12
12√2
26
8√2
8
80
80√2
66√2
66