The surface area of a cylinder is 6.28dm**2 larger than the lateral area, and the height is 4dm. What is the volume of this cylinder in cubic meters?
一个圆柱的表面积比侧面积大6.28dm**2，高是4dm，这个圆柱的体积是多少立方米？
<gadget id="calculator">6.28 / 2</gadget>
<output>3.14</output>

<gadget id="calculator">3.14 * 4</gadget>
<output>12.56</output>

<result>12.56</result>