A cylindrical pool has a diameter of 12 meters and a depth of 2 meters. A layer of cement is applied to the sides and bottom of the pool. How many square meters is the area covered with cement?
一个圆柱形的水池的直径为12米，深为2米，在池的侧面和底面抹一层水泥，抹水泥的面积是多少平方米？
<gadget id="calculator">3.14 * 50</gadget>
<output>157</output>

<result>157</result>