There are four cuboid pillars in the auditorium. The bottom is a square with a side length of 5 decimeters and a height of 5 meters. What is the area of painting these pillars/

There are four cuboid pillars in the auditorium. The bottom is a square with a side length of 5 decimeters and a height of 5 meters. What is the area of painting these pillars/


Only brush the side, a total of 4 * 4 = 16 sides, each side is 0.5 * 5 = 2.5 square meters, so the total is 2.5 * 16 = 40 cubic meters