The length of a cuboid is 7cm, the width is 4cm, and the height is 3cm. What is its volume?
一个长方体的长是7cm，宽是4cm，高是3cm，它的体积是多少．
<gadget id="calculator">7 * 4 * 3</gadget>
<output>84</output>

<result>84</result>