A conical pile of coal is 1.5 meters high, the circumference of the bottom is 12.56 meters, and the coal weight per cubic meter is 1.6 tons. How many tons does this pile of coal weigh?
一个圆锥形煤堆高1.5米，底面周长是12.56米，每立方米煤重1.6吨计算，这堆煤共重多少吨？
<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 * 1.5 * 1.6</gadget>
<output>10.048</output>

<result>10.048</result>