A cone and a cylinder have the same base and height. It is known that the volume of the cylinder is 12.56 cubic decimeters larger than that of the cone. What is the volume of the cylinder?
一个圆锥和一个圆柱等底等高，已知圆柱的体积比圆锥的体积多12.56立方分米，圆柱的体积是多少．
<gadget id="calculator">12.56 / 2</gadget>
<output>6.28</output>

<gadget id="calculator">12.56 + 6.28</gadget>
<output>18.84</output>

<result>18.84</result>