The edge length of a cube of wood is 4dm. If it is cut into a largest cylinder, what is the volume of the cylinder in dm**3.
一个正方体木料的棱长是4dm，把它削成一个最大的圆柱，圆柱的体积是多少dm**3．
<gadget id="calculator">4 / 2</gadget>
<output>2</output>

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

<gadget id="calculator">3.14 * 4 * 4</gadget>
<output>50.24</output>

<result>50.24</result>