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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:148DN GHM

Order: 19

Horizontal side: 148 Vertical side: 148

Elements: 3, 3√2, 6, 6√2, 15, 18, 20, 21, 20√2, 21√2, 34, 39, 40, 34√2, 54, 74, 54√2, 94, 74√2.

Code: 945 0 54 744 74 74 743 148 74 204 94 54 203 114 54 342 148 40 341 148 74 547 0 54 540 54 54 391 93 54 217 93 54 216 93 33 403 148 0 185 93 15 151 108 15 37 108 15 30 111 15 62 114 6 61 114 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)

94
74√2
74
20√2
20
34√2
34
54
54√2
39
21
21√2
40
18
15
3
3√2
6√2
6