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万华的爸爸是一位油漆工。一天晚上,爸爸回来对万华说:“儿子,明天我要去油漆柱子。老板说根据油漆面积的大小付工资。你能帮我算算油漆柱子的面积是多大吗?”“好!你能说详细些吗?”万华说。爸爸告诉万华:“我要油漆的是一间大厅里两根同样支撑顶棚的柱子,每根柱子高6米,底面直径是1米。要在圆柱表面涂上红色油漆,涂油漆的面积是多少?”万华听过题目,脑海里浮现出一幅“圆柱图”:两根柱子立在地上,支撑在顶棚上。借助图形,从实际情况考虑,圆柱的底面和顶面都不必油漆,油漆的是柱子周围的面积,也就是侧面积。怎样才能求出柱
Wanhua's father is a painter. One night, my father came back to Wanhua and said, “Son, tomorrow I'm going to paint the pillars. The boss says pay according to the size of the paint. Can you calculate the area of the paint pillars for me?” Can you say more in detail? “Wanhua said. Dad told Wanhua: ”I want to paint is a hall of two equally support the roof of the column, each column 6 meters high, the bottom diameter is 1 meter. To be painted in the cylindrical surface of the red paint, painted area What is the number? “Wanhua listened to the topic, my mind emerged a” cylinder chart ": two pillars stand on the ground, supported on the roof. With graphics, from the practical point of view, the bottom surface of the cylinder and the top surface are not required to paint, paint the area around the column, which is the side area. How can we find the column?