What is the volume of a cone with a base of 2 cm2 and a height of 4 cm?
一个圆锥底面积是2平方厘米，高是4厘米，它的体积是多少立方厘米．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) * 2 * 4</gadget>
<output>8/3 = around 2.666667</output>

<result>8/3 = around 2.666667</result>