A cylinder and a cone have the same base and height, the volume of the cone is 9 cubic centimeters, what is the volume of the cylinder in cubic centimeters?
一个圆柱和一个圆锥等底等高，圆锥的体积是9立方厘米，圆柱的体积是多少立方厘米．
<gadget id="calculator">9 * 3</gadget>
<output>27</output>

<result>27</result>