A conical pile of wheat has a base circumference of 9.42 meters and a height of 10 meters. If each cubic meter of wheat weighs about 720 kilograms. How many tons does this pile of wheat weigh?
一堆圆锥形麦堆，底面周长是9.42米，高10米．如果每立方米小麦约重720千克．这堆小麦重多少吨？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">9.42 / 3.14 / 2</gadget>
<output>1.5</output>

<gadget id="calculator">1.5 ** 2</gadget>
<output>2.25</output>

<gadget id="calculator">720 / 1_000</gadget>
<output>18/25 = around 0.72</output>

<gadget id="calculator">(1/3) * 3.14 * 2.25 * 10 * (18/25)</gadget>
<output>16.956</output>

<result>16.956</result>