A conical wheat pile has a base radius of 2 meters and a height of 0.5 meters. Each cubic meter of wheat weighs 1.2 tons. How many tons does this pile of wheat weigh?
一个圆锥形小麦堆，底面半径2米，高0.5米，每立方米小麦重1.2吨．这堆小麦重多少吨？
<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">(1/3) * 3.14 * 4 * 0.5 * 1.2</gadget>
<output>2.512</output>

<result>2.512</result>