A sandy beach approximately in the shape of a cone, 1.5 meters high, covers an area of 12.56 square meters. Load it into a construction truck, exactly 80% of the volume of the truck. What is the volume of this truck?
一个近似于圆锥形状的沙滩，高1.5米，占地面积12.56平方米．把它装进工程卡车里，正好是卡车容积的80%．这辆卡车的容积是多少？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1.5 / (4/5)</gadget>
<output>1.875</output>

<gadget id="calculator">(1/3) * 12.56 * 1.875</gadget>
<output>7.85</output>

<result>7.85</result>