The radius of the base of a cylinder is 2 decimeters, and the lateral area of the cylinder is 125.6 decimeters square. What is the volume of the cylinder?
一个圆柱体底面半径是2分米，圆柱侧面积是125.6平方分米，这个圆柱体的体积是多少立方分米？
<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

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

<gadget id="calculator">125.6 / 12.56</gadget>
<output>10</output>

<gadget id="calculator">3.14 * 4 * 10</gadget>
<output>125.6</output>

<result>125.6</result>