A conical wheat pile has a base diameter of 6 meters and a height of 2.5 meters. One cubic meter of wheat weighs about 750 kilograms. How many kilograms does this pile of wheat weigh?
一个圆锥形小麦堆，底面直径是6米，高是2.5米．每立方米小麦约重750千克，这堆小麦共重多少千克？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">6 / 2</gadget>
<output>3</output>

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

<gadget id="calculator">(1/3) * 3.14 * 9 * 2.5 * 750</gadget>
<output>17_662.5</output>

<result>17_662.5</result>