The volume of a conical sand pile is 4.239 cubic meters, and the circumference of its base is 9.42 meters. What is the height of the sand pile?
一个圆锥形沙堆的体积是4.239立方米，它的底面周长是9.42米，这个沙堆的高是多少米？
<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">3.14 * 2.25</gadget>
<output>7.065</output>

<gadget id="calculator">4.239 / (1/3) / 7.065</gadget>
<output>1.8</output>

<result>1.8</result>