A cylinder and a cone with bases of equal area and volume. If the height of the cone is 15cm. So what is the height of the cylinder in cm?
底面积、体积分别相等的圆柱体和圆锥体．如果圆锥的高是15cm．那么圆柱的高是多少cm．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">15 * (1/3)</gadget>
<output>5</output>

<result>5</result>