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2023-04-18 21:45:31
Chiều rộng của hình chữ nhật là:
6,9: 2 = 3,45 ( dm)
Diện tích ban đầu của hình chữ nhật là:
6,75 3,45 = 23,2875 (dm2)
Đáp số: 23,2875 dm2