A classroom is 6 meters wide, and its length is 1.5 times its width. What is the floor area of this classroom?
一间教室，宽6米，长是宽的1.5倍，这间教室的占地面积是多少？
<gadget id="calculator">6 * 1.5 * 6</gadget>
<output>54</output>

<result>54</result>