The length of a rectangle is 8 cm, and the width is 5 cm. If it is rotated around the long side as the axis, what is the volume of the three-dimensional figure in cubic centimeters?
一个长方形的长是8厘米，宽是5厘米，如果以长边为轴旋转一周，得出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 * 8</gadget>
<output>628</output>

<result>628</result>