A cylinder and a cone have the same volume and the same base area. If the height of the cylinder is 5 cm, what is the height of the cone in cm?
一个圆柱和一个圆锥的体积相等，底面积也相等，如果圆柱的高是5厘米，那么圆锥的高是多少厘米．
<gadget id="calculator">5 * 3</gadget>
<output>15</output>

<result>15</result>