A conical pile of sand has a diameter of 8 meters at the bottom and a height of 3 meters. If each cubic meter of sand weighs 1.5 tons, how many tons does the pile of sand weigh?
一个圆锥形沙堆，底面直径8米，高3米，如果每立方米沙重1.5吨，这堆沙一共重多少吨？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">(1/3) * 3.14 * 16 * 3</gadget>
<output>50.24</output>

<gadget id="calculator">50.24 * 1.5</gadget>
<output>75.36</output>

<result>75.36</result>