A pile of wheat cones has a base circumference of 25.12 meters and a height of 1.5 meters. If each cubic meter of wheat weighs 450 kilograms, how many tons does this pile of wheat have?
一堆圆锥体小麦，底面周长是25.12米，高是1.5米，假如每立方米小麦重450千克，这堆小麦有多少吨？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">25.12 / 3.14 / 2</gadget>
<output>4</output>

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

<gadget id="calculator">450 / 1_000</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">(1/3) * 3.14 * 16 * 1.5 * (9/20)</gadget>
<output>11.304</output>

<result>11.304</result>