The volume of a cone is 75.36dm**3, the radius of the base is 3dm, what is its height in dm?
一个圆锥的体积是75.36dm**3，底面半径是3dm，它的高是多少dm．
<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">3.14 * 9</gadget>
<output>28.26</output>

<gadget id="calculator">3 / 28.26</gadget>
<output>0.106157</output>

<gadget id="calculator">75.36 * 0.106157</gadget>
<output>7.999992</output>

<result>7.999992</result>