A conical pile of sand is 1.8 meters high and has a base radius of 10 meters. Each cubic meter of sand weighs about 1.7 tons. How many tons does this pile of sand weigh?
一个圆锥形沙堆，高1.8米，底面半径是10米，每立方米沙约重1.7吨，这堆沙约重多少吨？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">(1/3) * 3.14 * 100 * 1.8 * 1.7</gadget>
<output>320.28</output>

<result>320.28</result>