A cylindrical grain hoard full of wheat has a bottom area of 3.5m**2 and a height of 1.2m measured from the inside. After the grain hoard is removed, the wheat forms a conical wheat pile with a height of 1m. What is the area of the conical wheat pile in square meters?
一个装满小麦的圆柱形粮囤，从里面量底面积是3.5m**2，高是1.2m，现在把粮囤撤掉后，这些小麦形成了一个高1m的圆锥形麦堆．这个圆锥形麦堆的占地面积是多少平方米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1.2 / (1/3) / 1</gadget>
<output>3.6</output>

<gadget id="calculator">3.5 * 3.6</gadget>
<output>12.6</output>

<result>12.6</result>