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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:420AA GHM

Order: 19

Horizontal side: 420 Vertical side: 420

Elements: 22√2, 44, 33√2, 38√2, 56, 44√2, 66, 48√2, 76, 88, 96, 76√2, 132, 114√2, 162, 129√2, 192, 258, 210√2.

Code: 2585 0 162 2104 210 210 1146 306 306 963 306 210 762 382 230 763 382 154 382 420 192 484 258 162 563 306 154 1923 420 0 1625 0 0 1294 129 33 883 250 66 1327 250 154 336 129 33 665 162 0 444 206 22 443 250 22 224 228 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)

258
210√2
114√2
96
76√2
76
38√2
48√2
56
192
162
129√2
88
132
33√2
66
44√2
44
22√2