A cone-shaped sand pile has a base circumference of 9.42 meters and a height of 2 meters. What is the volume of the sand pile in cubic meters?
一个圆锥形沙堆的底面周长是9.42米，高是2米，这个沙堆的体积是多少立方米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">9.42 / 3.14 / 2</gadget>
<output>1.5</output>

<gadget id="calculator">1.5 ** 2</gadget>
<output>2.25</output>

<gadget id="calculator">(1/3) * 3.14 * 2.25 * 2</gadget>
<output>4.71</output>

<result>4.71</result>