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duongthichi467
2 năm trước
1. Người ta thả một khối sắt đặc hình lập phương vào một chậu đựng nước, lượng nước tràn ra ngoài 8 lít. Tính cạnh khối sắt hình lập phương ? 2. Một bể cá hình hộp chữ nhật có các kích thước là 1,2m; 0,8m và 0,9m. Trong bể có hòn non bộ. Người ta nhận thấy đổ vào 0,8 m3 nước thì đầy bể. Hãy tính thể tích hòn non bộ ?
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