The volume of a cylinder is 31.4 cubic meters, if its height is 5 meters, what is the area of its base in square meters?
一个圆柱的体积是31.4立方米，如果它的高是5米，那么它的底面积是多少平方米？
<gadget id="calculator">31.4 / 5</gadget>
<output>6.28</output>

<result>6.28</result>