distance = 4 + 2 + 4 + 2 = 12 m.
Displacement = Df-Do = 0-0 = 0.
Df = Final distance.
Do = Starting point.
from point A, a boy walks 4 m to the east,2 m to the sout, 4 m to the west , and finally, 2 m to the north , find the distance he travelled and his displacement
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