A conical wheat pile has a circumference of 62.8 meters and a height of 4.2 meters. Each cubic meter of wheat weighs 700 kilograms. How many tons does this pile of wheat weigh?
一个圆锥形麦堆周长是62.8米，高是4.2米，每立方米小麦重700千克，这堆小麦重多少吨？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">62.8 / 3.14 / 2</gadget>
<output>10</output>

<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">700 / 1_000</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">(1/3) * 3.14 * 100 * 4.2 * (7/10)</gadget>
<output>307.72</output>

<result>307.72</result>