A conical pile of wheat has a base radius of 3 meters and a height of 0.6 meters. Each cubic meter of wheat weighs 750 kilograms. How many kilograms does this pile of wheat weigh?
一个圆锥形小麦堆，量得底面半径是3米，高0.6米，每立方米麦重750千克，这堆小麦重多少千克？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">(1/3) * 3.14 * 9 * 0.6 * 750</gadget>
<output>4_239</output>

<result>4_239</result>