Uncle Wang unloaded a cart of sand on the ground and piled it into a cone. The diameter of the bottom of this pile of sand is 6 meters and the height is 0.4 meters. If there is no cubic meter of sand, the price is 70 yuan. How much do you sell it for?
王叔叔把一车沙子卸到地面上堆成了一个圆锥体，这个沙堆的底面直径是6米，高是0.4米，如果没立方米沙子的售价是70元，王叔叔这车沙子能卖多少钱？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) * 3.14 * 9 * 0.4 * 70</gadget>
<output>263.76</output>

<result>263.76</result>