A cylindrical cistern has a volume of 12.56 cubic meters and a depth of 2 meters. What is the area of the bottom of this cistern in square meters?
一个圆柱形蓄水池的容积是12.56立方米，深是2米，这蓄水池的底面积是多少平方米．
<gadget id="calculator">12.56 / 2</gadget>
<output>6.28</output>

<result>6.28</result>