A conical pile of sand has a base area of 3 square meters and a height of 2 meters. If each cubic meter of sand weighs 1.6 tons, how many tons does the pile of sand weigh?
一个圆锥形沙堆，底面积3平方米，高2米．如果每立方米沙子重1.6吨，这堆沙子重多少吨．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) * 3 * 2 * 1.6</gadget>
<output>3.2</output>

<result>3.2</result>