Go 40.5 units of distance in any direction. Turn 90 degrees clockwise and go 40.5 units of distance in a straight line. Turn 90 degrees clockwise and go 40.5 units of distance in a straight line. Turn 90 degrees clockwise and go 40.5 units of distance in a straight line.
You will have travelled along a square route whose total distance is 162 units. Alternatively you could have turned counter clockwise each time.
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multiply 162 and 8 and then take the square root. 36
162.00
162.0
162
The principal square root is the non-negative square root.