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Nima98765
2 năm trước
Một đám đất hình chữ nhật có chu vi 120 m , chiều dài gấp đôi chiều rộng A tính diện tích đám đất B người ta trông hoa 3/4 diện tích thửa ruộng đó. Tính diện tích trồng hoa
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