Paint 6 cylindrical chimneys. The circumference of its bottom surface is 25.12 decimeters and the height is 15 meters. On average, 0.5 kilograms of paint is used per square meter. How many kilograms of paint are needed in total.
油漆6根圆柱形烟囱，它的底面周长是25.12分米，高15米，平均每平方米要用油漆0.5千克，共需油漆多少千克．
<gadget id="calculator">0.2512 * 15 * 6 * 0.5</gadget>
<output>11.304</output>

<result>11.304</result>