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hmm9697
2 năm trước
trên 1 bản đồ khoảng cách giữa 2 điểm A và B là 4 cm,còn tren thực tế là 80 km a,Tính tỉ lệ xích của bản đồ trên b,Nếu biết trên bản đồ điểm C cách điểm D là 6,5 cm thì trên thực tế khoảng cách đó là bao nhiêu km?
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