The volume of a cylinder is 84cm**3, what is the volume of a cone with the same base and height?
一个圆柱的体积是84cm**3，与它等底等高的圆锥的体积是多少．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">84 * (1/3)</gadget>
<output>28</output>

<result>28</result>