The construction site uses concrete to burn and cast a cuboid column. The column is 3 meters high, and the bottom surface is a square with side length of 0.6 meters. How many cubic meters of concrete does it need to burn and cast this column at least? If a square ceramic tile with side length of 3 decimeters is pasted around the column, paste it How many square meters is the area of ceramic tile

The construction site uses concrete to burn and cast a cuboid column. The column is 3 meters high, and the bottom surface is a square with side length of 0.6 meters. How many cubic meters of concrete does it need to burn and cast this column at least? If a square ceramic tile with side length of 3 decimeters is pasted around the column, paste it How many square meters is the area of ceramic tile

0.6×3=1.8