What is the volume of a cone with a base radius of 2 decimeters and a height of 6 decimeters?
一个圆锥的底面半径2分米，高6分米，体积多少立方分米．
<gadget id="calculator">3.14 * 4 * 3</gadget>
<output>37.68</output>

<result>37.68</result>