A cylinder of wood 4 decimeters long has a cross-sectional area of 9.42 decimeters square. Use it to process it into a conical wooden part as large as possible. What is the volume of this part in cubic decimeters?
一段长4分米的圆柱体木料，横截面积是9.42平方分米．利用它加工成-个尽可能大的圆锥体木质零件，这个零件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">9.42 * 4 * (1/3)</gadget>
<output>12.56</output>

<result>12.56</result>