There is a pile of yellow sand approximately in the shape of a cone, the circumference of the bottom is 12.56 meters, and the height is 0.6 meters. If each cubic meter of yellow sand weighs 5 tons, how many tons does this pile of yellow sand weigh?
有一个近似于圆锥形状的黄沙堆，底面周长是12.56米，高是0.6米．如果每立方米黄沙重5吨，这堆黄沙大约重多少吨？
<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 * 0.6</gadget>
<output>2.512</output>

<gadget id="calculator">2.512 * 5</gadget>
<output>12.56</output>

<result>12.56</result>