A conical pile of wheat has a base circumference of 25.12 meters and a height of 1.8 meters. Each cubic meter of wheat weighs about 0.75 tons. How many tons does this pile of wheat weigh?
一个圆锥形状的小麦堆，底面周长25.12米，高1.8米，每立方米的小麦约重0.75吨，这堆小麦约重多少吨？
<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">25.12 / 6.28</gadget>
<output>4</output>

<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">(1/3) * 3.14 * 16 * 1.8 * 0.75</gadget>
<output>22.608</output>

<result>22.608</result>