There is a cube of wood, its edge length is 4dm, if this wood is processed into a largest cylinder, what is the volume of this cylinder dm**3.
有一块正方体的木料，它的棱长是4dm，把这块木料加工成一个最大的圆柱，这个圆柱的体积是多少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>