The side length of a square is 10cm, what is the volume of the space figure formed by rotating around one side of the square once?**3.
正方形的边长是10cm，以它的一边为轴旋转一周形成的空间图形的体积是多少cm**3．
<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">3.14 * 100 * 10</gadget>
<output>3_140</output>

<result>3_140</result>