A truck compartment is a cuboid with a length of 4 meters, a width of 1.5 meters, and a height of 4 decimeters. It is filled with a truckload of sand and unloaded to form a cone with a height of 5 decimeters. The area of its bottom is How many square meters is it.
一辆货车车厢是一个长方体，它的长是4米，宽是1.5米，高是4分米，装满一车沙，卸后堆成一个高是5分米的圆锥形，它的底面积是多少平方米．
<gadget id="calculator">4 * 1.5 * 0.4</gadget>
<output>2.4</output>

<gadget id="calculator">3 / 0.5</gadget>
<output>6</output>

<gadget id="calculator">2.4 * 6</gadget>
<output>14.4</output>

<result>14.4</result>