A conical pile of sand is 1.5 meters high and the circumference of the bottom is 12.56 meters. Each cubic meter of sand weighs about 1.8 tons. How many tons does this pile of sand weigh?
一个圆锥形沙堆，高1.5米，底面周长为12.56米，每立方米沙子约重1.8吨，这堆沙子约重多少吨？
<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 * 1.5</gadget>
<output>6.28</output>

<gadget id="calculator">6.28 * 1.8</gadget>
<output>11.304</output>

<result>11.304</result>