Krishna walked 20 m towards the north. Then he turned right and walked 30 m. Then he turned right and walked 35 m. Then he turned left and walked 15 m. Finally he turns left and went 15 m. In which direction and how many meters is Krishna compared to from the starting position ?
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Use coordinate geometry for direction-distance problems. Assign East as positive x, North as positive y. Calculate net displacement at the end using Pythagoras if needed.