The volume of a cone is 25.12 cubic meters and the radius of the base is 4 meters. What is the height of the cone?
一个圆锥体积是25.12立方米，底面半径是4米，这个圆锥高多少米．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">3.14 * 16</gadget>
<output>50.24</output>

<gadget id="calculator">25.12 / (1/3) / 50.24</gadget>
<output>1.5</output>

<result>1.5</result>