On the threshing floor, there is an approximate conical wheat pile with a base radius of 3 meters and a height of 1 meter. What is the volume of this heap of wheat in cubic meters? How many.
在打谷场上，有一个近似的圆锥形小麦堆，测得底面半径是3米，高1米．这个小麦堆的体积是多少立方米？多少．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">(1/3) * 3.14 * 9 * 1</gadget>
<output>9.42</output>

<result>9.42</result>