The side view of a cylinder is a rectangle with a length of 12.56dm and a width of 4dm. What is the possible volume of this cylinder in dm**3.
一个圆柱体的侧面展开图是一个长为12.56dm、宽为4dm的长方形，这个圆柱体的体积可能是多少dm**3．
<gadget id="calculator">2 * 3.14</gadget>
<output>6.28</output>

<gadget id="calculator">12.56 / 6.28</gadget>
<output>2</output>

<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

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

<result>50.24</result>