conical grain storage, measured from the inside, has a circumference of 9.42 meters and a height of 2 meters. If each cubic meter of rice weighs 500 kilograms, how many kilograms of rice can this grain store hold?
一个圆锥形粮囤，从里面量底面周长9.42米，高2米．如果每立方米稻谷重500千克，这个粮囤大约能装稻谷多少千克？
<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">(1/3) * 3.14 * 2.25 * 2</gadget>
<output>4.71</output>

<gadget id="calculator">4.71 * 500</gadget>
<output>2_355</output>

<result>2_355</result>