A cuboid has a length of 5cm, a width of 4cm, and a height of 2cm. What is its volume in cm**3.
一个长方体，长5cm，宽4cm，高2cm，它的体积是多少cm**3．
<gadget id="calculator">5 * 4 * 2</gadget>
<output>40</output>

<result>40</result>