A cylinder and a cone have the same base and height. The volume of the cone is 1.8 cubic decimeters. What is the volume of the cylinder?
一个圆柱和一个圆锥等底等高，圆锥的体积是1.8立方分米，圆柱的体积是多少立方分米．
<gadget id="calculator">1.8 * 3</gadget>
<output>5.4</output>

<result>5.4</result>