If the volume of a cone is 16.5 cubic decimeters, what is the volume of a cylinder with the same base and height as it?
一个圆锥的体积是16.5立方分米，和它等底等高的圆柱的体积是多少立方分米．
<gadget id="calculator">16.5 * 3</gadget>
<output>49.5</output>

<result>49.5</result>