conical pile of sand is 1.2 meters high and 10 meters in diameter at the bottom. Each cubic meter of sand weighs about 2 tons. How many tons does this pile of sand weigh?
一个圆锥形的沙堆，高是1.2米，底面直径是10米，每立方米的沙约重2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>5</output>

<gadget id="calculator">5 ** 2</gadget>
<output>25</output>

<gadget id="calculator">(1/3) * 3.14 * 25 * 1.2 * 2</gadget>
<output>62.8</output>

<result>62.8</result>