A conical sand pile with a bottom circumference of 12.56 meters and a height of 2.4 meters. Transport this pile of sand to fill a cuboid pit with a length of 4 meters and a width of 3 meters. Just fill (1/3), and the depth of this pit is several meters ?
一个圆锥的沙堆，底面周长12.56米，高2.4米，将这堆沙运去填补一个长4米，宽3米的长方体土坑，正好只填(1/3)，这个土坑深几米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">12.56 / 3.14 / 2</gadget>
<output>2</output>

<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

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

<gadget id="calculator">2.4 / 12</gadget>
<output>0.2</output>

<gadget id="calculator">(1/3) * 3.14 * 4 * 0.2 * 3</gadget>
<output>2.512</output>

<result>2.512</result>