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Primitive Perfect Isosceles Right Triangled Square

Title: dr 19:152DK1of4 GHM

Order: 19

Horizontal side: 152 Vertical side: 152

Elements: 3, 3√2, 6, 6√2, 9, 12, 21, 22, 22√2, 32, 33, 44, 32√2, 33√2, 54, 76, 54√2, 98, 76√2.

Code: 985 0 54 764 76 76 763 152 76 224 98 54 223 120 54 322 152 44 321 152 76 547 0 54 540 54 54 334 87 21 333 120 21 443 152 0 211 108 21 37 108 21 30 111 21 91 120 21 67 108 18 60 114 18 127 108 12

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)

98
76√2
76
22√2
22
32√2
32
54
54√2
33√2
33
44
21
3
3√2
9
6
6√2
12