If the lateral area of a cylinder is 12.56 square centimeters and its radius is 2 centimeters, what is its volume in cubic centimeters?
一个圆柱侧面积是12.56平方厘米，半径是2厘米，体积是多少立方厘米．
<gadget id="calculator">12.56 / 2</gadget>
<output>6.28</output>

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

<result>12.56</result>