R walks 20 m North. Then he turns right and walks 30 m. Then he turns right and walks 35 m. Then he turns left and walks 15 m. Then he again turns left and walks 15 m. Determine that finally in which direction and how many metres away is he from his original position ?
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Use coordinate geometry or draw a path. Keep track of direction changes: Right = 90° clockwise, Left = 90° counterclockwise.