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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:57AB GHM

Order: 19

Horizontal side: 57 Vertical side: 57

Elements: 3, 3√2, 6, 8, 9, 8√2, 9√2, 14, 16, 12√2, 18, 14√2, 21, 22, 24, 18√2, 27, 28, 21√2.

Code: 277 0 57 243 27 33 87 27 57 80 35 57 221 57 57 167 27 49 283 43 21 142 57 35 143 57 21 36 0 30 65 3 27 124 15 21 35 0 27 97 0 27 90 9 27 214 36 0 213 57 0 187 0 18 180 18 18

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)

27
24
8
8√2
22
16
28
14√2
14
3√2
6
12√2
3
9
9√2
21√2
21
18
18√2