A cone has a volume of 15.7 cubic decimeters and a height of 5 decimeters, what is the area of its base?
一个圆锥体的体积是15.7立方分米，高是5分米，它的底面积是多少？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">15.7 * (3/5)</gadget>
<output>9.42</output>

<result>9.42</result>