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nguyenyen1234
2 năm trước
Một mảnh vườn hình chữ nhật có nửa chu vi là 76m . Chiều rộng bằng 60% chiều dài . a) Tính diện tích mảnh vườn đó . b ) Người ta sử dụng 8% diện tích mảnh vườn làm lối đi . Tìm diện tích lối đi .
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