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bichhangtq1979
2 năm trước
Một hình chữ nhật có chiều dài bằng 1/ 4 chiều rộng . Tính chu vi hình chữ nhật đó biết diện tích là 1715cm2. Một hình chữ nhật có chiều rộng bằng 5/6 chiều dài . Tính chu vi hình chữ nhật đó biết diện tích là 270cm2
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