The volume of a cone is 9cm**3, the area of the base is 3cm**2, what is the height of the cone in cm?
一个圆锥的体积是9cm**3，底面积是3cm**2，这个圆锥的高是多少cm．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

<result>9</result>