A conical pile of sand has a base circumference of 6.28 meters, a height of 1.2 meters, and a cubic meter of sand weighing 1.5 tons. How many tons does this pile of sand weigh?
一堆圆锥形的沙子，底面周长是6.28米，高1.2米，每立方米沙重1.5吨．这堆沙重多少吨？
<gadget id="calculator">6.28 / 3.14 / 2</gadget>
<output>1</output>

<gadget id="calculator">1 ** 2</gadget>
<output>1</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">3.14 * 1 * 1.2 * (1/3) * 1.5</gadget>
<output>1.884</output>

<result>1.884</result>