Go 0.5 units of distance in any direction. Turn 90 degrees clockwise and go 0.5 units of distance in a straight line. Turn 90 degrees clockwise and go 0.5 units of distance in a straight line. Turn 90 degrees clockwise and go 0.5 units of distance in a straight line.
You will have travelled along a square route whose total distance is 2 units. Alternatively you could have turned counter clockwise each time.
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