There is a pile of sand on the construction site. Its shape is conical, its bottom surface is 8m in diameter, and its height is 1.5m. How many tons does this pile of sand have? (1m**3 sand weighs 1.4 tons)
建筑工地上有一堆沙子，它的形状是圆锥形，它的底面直径是8m，高是1.5m，这堆沙子有多少吨？(1m**3沙重1.4吨)
<gadget id="calculator">8 / 2</gadget>
<output>4</output>

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

<gadget id="calculator">3.14 * 16</gadget>
<output>50.24</output>

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

<gadget id="calculator">50.24 * 1.5 * (1/3)</gadget>
<output>25.12</output>

<gadget id="calculator">1.4 * 25.12</gadget>
<output>35.168</output>

<result>35.168</result>