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dobovn
2 năm trước
một thùng hình trụ có chiều cAO H=3M BÁN KÍNH ĐƯỜNG TRÒN ĐÁY R=1m chứa một lượng nước biết rằng nếu đặt thùng nằm ngang ta được chiều cao mực nước trong thung là d=0.5m .hỏi thể tích lượng nước có trong bình gần với giá trị nào ? giúp với ạ
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