Find the volume of the cone according to known conditions. (h=6, r=2) (unit: cm)
根据已知条件求圆锥的体积．(h=6，r=2)(单位：厘米)
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

<gadget id="calculator">(1/3) * 3.14 * 4 * 6</gadget>
<output>25.12</output>

<result>25.12</result>