The construction site uses concrete to cast a cuboid column. The column is 3 meters high and the bottom is a square with a side length of 0.6 meters. How many cubic meters of concrete is required to cast this column at least? If you stick ceramic tiles around the column, how many square meters is the area of tile?
0.6 × 0.6 × 3 = 1.08 cubic meters, (3 × 0.6 + 3 × 0.6) × 2 = 7.2 square meters; answer: the pouring of this column requires at least 1.08 cubic meters of concrete; if tiles are pasted around the column, the area of tiles is 7.2 square meters
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