There is a pile of cone-shaped yellow sand on the construction site. The radius of the bottom surface is 10 meters, and the height is 3 meters. If each cubic meter of yellow sand weighs 1.8 tons, how many tons does this pile of yellow sand weigh?
在建筑工地上有一堆圆锥体黄沙．底面半径是10米，高是3米，如果每立方米黄沙重1.8吨，这堆黄沙约重多少吨？
<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

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

<gadget id="calculator">3.14 * 100 * 3 * (1/3)</gadget>
<output>314</output>

<gadget id="calculator">1.8 * 314</gadget>
<output>565.2</output>

<result>565.2</result>