There is a conical sand pile on the construction site. The circumference of the bottom surface is 25.12 meters and the height is 1.5 meters. What is the approximate cubic meter of this pile of sand (retain two decimal places).
工地上有一个圆锥形沙堆，底面周长25.12米，高1.5米，这堆沙子大约多少立方米(得数保留两位小数)．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">25.12 / 3.14 / 2</gadget>
<output>4</output>

<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">(1/3) * 3.14 * 16 * 1.5</gadget>
<output>25.12</output>

<result>25.12</result>