There is a cuboid wood whose length, width and height are 4dm, 3dm and 5dm respectively. If this piece of wood is processed into the largest cone, what is the volume of this cone?
有块长方体木料，它的长、宽、高分别是4dm、3dm、5dm．把这块木料加工成最大的圆锥，这个圆锥的体积是多少？
<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 * 3</gadget>
<output>12.56</output>

<result>12.56</result>