A conical pile of sand has a base radius of 1 meter and a height of 1.5 meters. Each cubic meter of sand weighs about 1.2 tons. How many tons does this pile of sand weigh?
一圆锥形沙堆，底面半径是1米，高1.5米，每立方米沙约重1.2吨，这堆沙重多少吨？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

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

<result>1.884</result>