A cylinder and a cone have the same base area, their volume ratio is 1:2, and the height of the cylinder is 10 cm, what is the height of the cone in cm?
一个圆柱体与一个圆锥体底面积相等，它们的体积比是1：2，圆柱体的高是10厘米，那么圆锥体的高是多少厘米．
<gadget id="calculator">10 * 6</gadget>
<output>60</output>

<result>60</result>