A cone-shaped beach has a bottom area of 5 square meters and a height of 1.2. If each cubic meter of sand weighs 2000 kilograms, how many tons does this pile of sand weigh?
一个圆锥体沙滩，底面积是5平方米，高1.2，如果每立方米沙重2000千克，这堆沙重多少吨？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">2_000 / 1_000</gadget>
<output>2</output>

<gadget id="calculator">(1/3) * 5 * 1.2 * 2</gadget>
<output>4</output>

<result>4</result>