A cone has a volume of 9.42 cubic decimeters and a height of 3 decimeters. What is the area of its base?
一个圆锥体，体积是9.42立方分米，高3分米，它的底面积是多少．
<gadget id="calculator">3 / 3</gadget>
<output>1</output>

<gadget id="calculator">9.42 * 1</gadget>
<output>9.42</output>

<result>9.42</result>