The volume and height of a cone and a cylinder are equal respectively, and the base area of the cylinder is known to be 3.14 square decimeters, what is the area of the bottom of the cone in square decimeters?
一个圆锥和一个圆柱的体积和高分别相等，已知圆柱的底面积是3.14平方分米，则圆锥的底面积是多少平方分米．
<gadget id="calculator">3.14 * 3</gadget>
<output>9.42</output>

<result>9.42</result>