On the construction site there is a pile of sand that resembles a cone. The circumference of the bottom is 25.12 meters and the height is about 3 meters. If the sand weighs 1700 kilograms per cubic meter, how many tons does the pile of sand weigh?
建筑工地上有一个近似于圆锥的沙堆，底面周长是25.12米，高约是3米，若每立方米沙重1700千克，这堆沙重多少吨？
<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_700 / 1_000</gadget>
<output>17/10 = around 1.7</output>

<gadget id="calculator">(1/3) * 3.14 * 16 * 3 * (17/10)</gadget>
<output>85.408</output>

<result>85.408</result>