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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:140AO GHM

Order: 19

Horizontal side: 140 Vertical side: 140

Elements: 5√2, 6√2, 10, 12, 9√2, 14, 12√2, 18, 20, 24, 20√2, 24√2, 40, 56, 40√2, 60, 80, 60√2, 70√2.

Code: 807 0 140 563 80 84 402 120 100 401 120 140 202 140 120 201 140 140 606 80 60 240 24 84 241 48 84 122 60 72 181 66 84 92 75 75 141 80 84 50 75 75 123 60 60 62 66 66 700 70 70 101 80 70 607 0 60

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)

80
56
40√2
40
20√2
20
60√2
24√2
24
12√2
18
9√2
14
5√2
12
6√2
70√2
10
60