"Fishes" A special type 2 pentagon is the basis for
this pattern. Type 2 tiles have two non-adjacent angles which when added together equal
180 degrees. They also have two sides of equal length which join at one of those two
angles. This pattern requires that four sides of the pentagon will be of equal length and
two of each will join to form the two angles which equal 180 degrees. The remaining side
can be of a different length.
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