A cylindrical container with a base radius of 12 cm contains a portion of water in which a conical lead block of height 9 cm is completely submerged. When the lead block was taken out of the water, the water level dropped by 2 cm. What is the area of the base of the lead block in square centimeters?
一个底面半径是12cm的圆柱形容器中装有一部分水，水中完全浸没了一个高是9cm的圆锥形铅块．当把铅块从水中取出后，水面下降了2cm．这个铅块的底面积是多少平方厘米？
<gadget id="calculator">12 ** 2</gadget>
<output>144</output>

<gadget id="calculator">3.14 * 144 * 2</gadget>
<output>904.32</output>

<gadget id="calculator">3 / 9</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">904.32 * (1/3)</gadget>
<output>301.44</output>

<result>301.44</result>