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tranvantan
2 năm trước
1,969dm³= … cm³ Người ta làm một cái hộp dạng hình chữ nhật bằng bìa. Biết rằng hộp đó có chiều dài 5dm, chiều rộng 3dm và chiều cao 2dm. Hỏi có thể xếp được bao nhiêu hình lập phương 1dm³ để đầy cái hộp đó? Hình dưới đây ⇩
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