The lateral area of the cylinder is 50.24dm**2, the radius of the bottom surface is 2dm, what is the volume of the cylinder dm**3.
圆柱的侧面积是50.24dm**2，底面半径是2dm，这个圆柱的体积是多少dm**3．
<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

<gadget id="calculator">2 * 3.14 * 2</gadget>
<output>12.56</output>

<gadget id="calculator">50.24 / 12.56</gadget>
<output>4</output>

<gadget id="calculator">3.14 * 4 * 4</gadget>
<output>50.24</output>

<result>50.24</result>