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Tom123
2 năm trước
Nếu chiều dài của hình chữ nhật tăng thêm 20% số đo của nó và chiều rộng giảm 20% số đo của nó thì diện tích bị giảm 30𝑚2. Vậy diện tích của hình chữ nhật đó là ...m2. *
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