A cylindrical wooden block with a base diameter of 6 decimeters and a height of 4 decimeters is cut into the largest cone. What is the volume of this cone in cubic decimeters?
一个底面直径为6分米，高为4分米的圆柱体木块，把它切割成一个最大的圆锥体，这个圆锥体的体积是多少立方分米．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">(1/3) * 3.14 * 9 * 4</gadget>
<output>37.68</output>

<result>37.68</result>