cylindrical grain store full of wheat has a bottom area of 4.5m**2 and a height of 2m. If the wheat is stacked into a conical wheat pile with a height of 1.2m, what is the area in square meters? ?
一个装满小麦的圆柱形粮囤，底面积是4.5m**2，高是2m，如果把这些小麦堆成高是1.2m的一个圆锥形的麦堆，它的占地面积是多少平方米？
<gadget id="calculator">4.5 * 2</gadget>
<output>9</output>

<gadget id="calculator">3 / 1.2</gadget>
<output>2.5</output>

<gadget id="calculator">9 * 2.5</gadget>
<output>22.5</output>

<result>22.5</result>