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minhvan.kylam
2 năm trước
giúp mình với ko nhìn lên mạng nhé a)Hình lập phương thứ nhất có cạnh 8 cm,hình lập phương thứ hai có cạnh 4 cm .Tính diện tichsxung quanh của mỗi hình lập phương. diện tích sung quanh của hình lập phương thứ nhất gấp mấy lần diện tích xung quanh của hình lập phương thứ 2 ?
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