The length of a cuboid is 4 decimeters, the width is 2.5 decimeters, and the height is 3 decimeters. What is its volume in cubic decimeters?
一个长方体的长是4分米，宽是2.5分米，高是3分米，求它的体积是多少立方分米？
<gadget id="calculator">4 * 2.5 * 3</gadget>
<output>30</output>

<result>30</result>