There is a concrete square column in the city gymnasium, which is 4 meters long and the bottom is a square with a side length of 3 decimeters. If the square column is pasted with ceramic tiles, what is the area of the tile part? How many cubic meters of concrete does this square column need?

There is a concrete square column in the city gymnasium, which is 4 meters long and the bottom is a square with a side length of 3 decimeters. If the square column is pasted with ceramic tiles, what is the area of the tile part? How many cubic meters of concrete does this square column need?

923970,
Bottom side length: 3 decimeters = 0.3 meters
Tile area: (0.3 × 4) × 4 = 4.8 (M2)
Concrete required: 0.3 × 0.3 × 4 = 0.36 (M3)

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