A rectangle with a length of 5 decimeters and a width of 3 decimeters is rotated once with its length as the axis. What is the volume of the figure formed?
一个长方形，长5分米，宽3分米，以它的长为轴，旋转一周，所形成的图形的体积是多少立方分米？
<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">3.14 * 9 * 5</gadget>
<output>141.3</output>

<result>141.3</result>