A conical wheat pile has a base circumference of 15.7m and a height of 1.5m. If the wheat weighs about 720kg/m**3, how many kilograms does this pile of wheat weigh?
一个圆锥形小麦堆的底面周长为15.7m，高1.5m．如果小麦约重720㎏/m**3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">15.7 / 3.14 / 2</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</gadget>
<output>9.8125</output>

<gadget id="calculator">9.8125 * 720</gadget>
<output>7_065</output>

<result>7_065</result>