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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:148CW4of4 GHM

Order: 19

Horizontal side: 148 Vertical side: 148

Elements: 2√2, 4, 4√2, 8, 6√2, 10, 8√2, 9√2, 10√2, 18, 18√2, 28, 37√2, 56, 46√2, 74, 56√2, 92, 74√2.

Code: 925 0 56 744 74 74 743 148 74 184 92 56 100 110 74 101 120 74 287 120 74 376 111 37 83 100 56 42 104 60 41 104 64 22 106 62 84 112 56 183 120 46 60 106 62 565 0 0 564 56 0 460 102 46 94 111 37

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)

92
74√2
74
18√2
10√2
10
28
37√2
8
4√2
4
2√2
8√2
18
6√2
56
56√2
46√2
9√2