A rectangular cardboard has a length of 6 cm and a width of 5 cm. What is the volume in cubic centimeters of the three-dimensional figure obtained by rotating the length of the cardboard for one revolution?
一个长方形硬纸板长6厘米，宽5厘米，一纸板的长为轴旋转一周得到的立体图形的体积是多少立方厘米．
<gadget id="calculator">5 ** 2</gadget>
<output>25</output>

<gadget id="calculator">3.14 * 25 * 6</gadget>
<output>471</output>

<result>471</result>