conical pile of wheat has a circumference of 12.56 meters and a height of 1.5 meters. Each cubic meter of wheat weighs about 750 kilograms. How many tons does this pile of wheat weigh?
一个圆锥形的小麦堆，底面周长是12.56米，高是1.5米，每立方米小麦约重750千克，这堆小麦大约重多少吨？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

<gadget id="calculator">750 / 1_000</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(1/3) * 3.14 * 4 * 1.5 * (3/4)</gadget>
<output>4.71</output>

<result>4.71</result>