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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:142AI GHM

Order: 19

Horizontal side: 142 Vertical side: 142

Elements: 4, 5, 4√2, 5√2, 8, 10, 10√2, 20, 28, 20√2, 28√2, 43, 51, 55, 59, 63, 71, 79, 71√2.

Code: 797 0 142 593 79 83 637 79 142 716 71 71 206 0 63 557 20 83 40 75 83 41 79 83 513 71 28 87 71 79 715 71 0 205 0 43 435 0 0 104 10 33 103 20 33 54 15 28 53 20 28 284 43 0 283 71 0

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)

79
59
63
71√2
20√2
55
4√2
4
51
8
71
20
43
10√2
10
5√2
5
28√2
28