conical sand pile, the circumference of the bottom is 31.4 meters, and the height is 72 meters. If each cubic meter of sand weighs 1.5 tons, how many tons does the pile of sand weigh?
一个圆锥形沙堆，底面周长是31.4米，高72米．如果每立方米沙重1.5吨，这堆沙重多少吨？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">31.4 / 3.14 / 2</gadget>
<output>5</output>

<gadget id="calculator">5 ** 2</gadget>
<output>25</output>

<gadget id="calculator">(1/3) * 3.14 * 25 * 72</gadget>
<output>1_884</output>

<gadget id="calculator">1_884 * 1.5</gadget>
<output>2_826</output>

<result>2_826</result>