A cone and a cylinder have the same volume. If the area of the base of the cylinder is half of the area of the base of the cone, and the height of the cylinder is 6 cm, what is the height of the cone in cm?
一个圆锥和一个圆柱体积相等，如果圆柱底面积是圆锥底面积的一半，圆柱的高是6厘米，那么圆锥的高是多少厘米？
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 * 3</gadget>
<output>9</output>

<result>9</result>