A conical pile of rice has a diameter of 4 meters at the bottom and a height of 1.5 meters. How much does the pile of rice weigh in kilograms? (1 cubic meter of paddy weighs about 700 kg)
一个圆锥形稻谷堆，它的底面直径是4米，高1.5米，这堆稻谷重多少千克？(1立方米稻谷大约重700千克)
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">4 / 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">700 * 6.28</gadget>
<output>4_396</output>

<result>4_396</result>