The height of the cone is 12 cm and the length of the base is 4 cm. Find the volume of the cone.
圆锥高12厘米，底长4厘米，求圆锥体积．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

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

<gadget id="calculator">(1/3) * 3.14 * 4 * 12</gadget>
<output>50.24</output>

<result>50.24</result>