The area of the base of a cone is 31.4c㎡, the volume is 94.2cm**3, what is its height in cm?
一个圆锥的底面积是31.4c㎡，体积是94.2cm**3，它的高是多少cm．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">94.2 / (1/3) / 31.4</gadget>
<output>9</output>

<result>9</result>