The compartment of a coal truck is a cuboid. Measured from the inside, the bottom area is 4.5m**2, and the height of the coal loaded is 0.8m. If 1m**3 coal weighs 1.3 tons, how many tons does this coal truck load?
一辆运煤车的车厢是长方体．从里面量，底面积是4.5m**2，装的煤高0.8m．如果1m**3煤重1.3吨，这辆运煤车装煤多少吨？
<gadget id="calculator">4.5 * 0.8 * 1.3</gadget>
<output>4.68</output>

<result>4.68</result>