If a rectangle is 4 cm wide and 3 cm wide, if it is rotated around the length axis, what is the volume of the resulting figure in cubic centimeters?
一个长方形4厘米，宽3厘米，如果以长为轴旋转一周，求所形成图形的体积是多少立方厘米．
<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">3.14 * 9 * 4</gadget>
<output>113.04</output>

<result>113.04</result>