conical wheat pile has a base circumference of 15.7 meters and a height of 1.5 meters. If each cubic meter of wheat weighs about 720 kilograms, how many kilograms does this pile of wheat weigh?
一圆锥形小麦堆的底面周长为15.7米，高1.5米．如果每立方米小麦约重720千克，这堆小麦约重多少千克？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">2 * 3.14</gadget>
<output>6.28</output>

<gadget id="calculator">15.7 / 6.28</gadget>
<output>2.5</output>

<gadget id="calculator">2.5 ** 2</gadget>
<output>6.25</output>

<gadget id="calculator">(1/3) * 3.14 * 6.25 * 1.5 * 720</gadget>
<output>7_065</output>

<result>7_065</result>