A cylinder and a cone have the same base and height. The volume of the cylinder is 12.3 cubic decimeters. What is the volume of the cone?
一个圆柱和圆锥等底等高，圆柱的体积是12.3立方分米，圆锥的体积是多少立方分米．
<gadget id="calculator">12.3 / 3</gadget>
<output>4.1</output>

<result>4.1</result>