A conical sand pile with a bottom diameter of 6m and a height of 0.9m. If this pile of sand is spread in a room with a length of 4m and a width of 3m. How thick can it be?
一个圆锥形砂堆，底面直径6m，高0.9m．如果把这堆沙铺在长4m、宽3m的房间里．能铺多厚？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">(1/3) * 3.14 * 9 * 0.9</gadget>
<output>8.478</output>

<gadget id="calculator">4 * 3</gadget>
<output>12</output>

<gadget id="calculator">8.478 / 12</gadget>
<output>0.7065</output>

<result>0.7065</result>