"Roses"
This pattern uses a type 1 pentagon. Two
adjacent angles will add up to 180 degrees. This special type 1 requires the three side
forming these two angle to be of equal length. The two remaining sides must be equal to
each other. Those two angles must be 650 degrees and 120 degrees. This is the only
pentagon that fills these requirements. The six colors of the roses each represent one of
six orientations in the pattern |