A pile of conical sand has a circumference of 21.98 meters and a height of 1.5 meters. If each cubic meter of sand weighs 1.2 tons, how many tons does the pile of sand weigh?
一堆圆锥形沙堆，底面周长是21.98米，高1.5米，如果每立方米沙重1.2吨，这堆沙重多少吨？
<gadget id="calculator">21.98 / 3.14 / 2</gadget>
<output>3.5</output>

<gadget id="calculator">3.5 ** 2</gadget>
<output>12.25</output>

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

<gadget id="calculator">3.14 * 12.25 * 1.5 * (1/3)</gadget>
<output>19.2325</output>

<gadget id="calculator">19.2325 * 1.2</gadget>
<output>23.079</output>

<result>23.079</result>