A cone has a volume of 4.5 cubic meters and a height of 9 meters. What is the area of its base in square meters?
一个圆锥的体积是4.5立方米，高是9米，它的底面积是多少平方米．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">4.5 / (1/3) / 9</gadget>
<output>1.5</output>

<result>1.5</result>