The volume of a cone is 4.5 cubic decimeters, the height is 4.5 decimeters, what is the area of the base in square decimeters?
一个圆锥体的体积是4.5立方分米，高是4.5分米，底面积是多少平方分米．
<gadget id="calculator">4.5 / 4.5</gadget>
<output>1</output>

<gadget id="calculator">3 * 1</gadget>
<output>3</output>

<result>3</result>