A cone and a cylinder have the same base area and volume. If 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，它们的底面积和体积分别相等．如果圆柱的高是6厘米，那么圆锥的高是多少厘米．
<gadget id="calculator">6 * 3</gadget>
<output>18</output>

<result>18</result>