The volume of a cone is 15cm**3, its base area is 5cm**2, and its height is cm.
一个圆锥体积是15cm**3，它的底面积是5cm**2，高是多少cm．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">15 / (1/3) / 5</gadget>
<output>9</output>

<result>9</result>