A cone is 4 cm high, its base radius is 6 cm, find its volume.
一个圆锥高4厘米，已知它的底面半径是6厘米，求它的体积．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">6 ** 2</gadget>
<output>36</output>

<gadget id="calculator">(1/3) * 3.14 * 36 * 4</gadget>
<output>150.72</output>

<result>150.72</result>