On the construction site, there is a pile of sand that is similar to a cone. Its base radius is 3 meters and its height is 1.2 meters. What is the volume of this pile of sand in cubic meters?
在建筑工地上，有一个近似于圆锥体的沙堆，测得它的底面半径是3米，高是1.2米，这堆沙的体积是多少立方米？
<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

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

<gadget id="calculator">3.14 * 9 * 1.2 * (1/3)</gadget>
<output>11.304</output>

<result>11.304</result>