What is the volume of a cone whose base area is 12 square centimeters and height is 5 centimeters?
一个圆锥的底面积是12平方厘米，高是5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) * 12 * 5</gadget>
<output>20</output>

<result>20</result>