A cone and a cylinder have the same base area, and the volume of the cone is 1/6 that of the cylinder. If the height of the cylinder is 9 cm, what is the height of the cone?
一个圆锥和一个圆柱的底面积相等，圆锥的体积是圆柱的(1/6)，如果圆柱的高是9厘米，那么圆锥的高是多少．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">9 * (1/2)</gadget>
<output>9/2 = around 4.5</output>

<result>9/2 = around 4.5</result>