The volume of a cone is 12cm**3, the area of its base is 3cm**2, and its height is cm.
一个圆锥的体积是12cm**3，它的底面积是3cm**2，高是多少cm．
<gadget id="calculator">3 / 3</gadget>
<output>1</output>

<gadget id="calculator">12 * 1</gadget>
<output>12</output>

<result>12</result>