A conical sand pile has a bottom area of 12.56 square meters and a height of 1.8 meters. If each cubic meter of sand weighs 1.7 tons, how many tons does the pile of sand weigh?
一个圆锥形沙堆，底面积是12.56平方米，高1.8米．如果每立方米沙重1.7吨，这堆沙重多少吨？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) * 12.56 * 1.8 * 1.7</gadget>
<output>12.8112</output>

<result>12.8112</result>