The volume of a cone is 4.5 cubic decimeters and the height is 0.9 decimeters. What is the area of its base?
一个圆锥体的体积是4.5立方分米，高是0.9分米，它的底面积是多少．
<gadget id="calculator">3 / 0.9</gadget>
<output>3.333333</output>

<gadget id="calculator">4.5 * 3.333333</gadget>
<output>14.999999</output>

<result>14.999999</result>