There is a sandy beach in the shape of a cone on the construction site. The height of the sand pile is measured to be about 1.5m, and the circumference of the circle at the bottom is about 12.56m. Calculate the volume of the sand pile in cubic meters.
在建筑工地上有一个近似圆锥体形状的沙滩，测得沙堆的高约1.5m，底面圆形的周长约12.56m，计算一下，这沙堆的体积是多少立方米？
<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">(1/3) * 3.14 * 4 * 1.5</gadget>
<output>6.28</output>

<result>6.28</result>