Build a cylindrical pool with a bottom diameter of 16 meters and a depth of 2.5 meters. Put cement on the bottom and sides of the pool. If 20 kilograms of cement is needed per square meter, how many kilograms of cement is needed to plaster the pool?
砌一个圆柱形水池，底面直径是16米，深2.5米，在池底面和侧面抹水泥，若每平方米需水泥20千克，抹好这个池子共需水泥多少千克？
<gadget id="calculator">325.56 * 20</gadget>
<output>6_511.2</output>

<result>6_511.2</result>