The width of the classroom is 6m, and the length is 1.5 times the width. What is the area of the classroom in square meters?
教室的宽为6m，长是宽的1.5倍，教室的面积是多少平方米？
<gadget id="calculator">6 * 1.5 * 6</gadget>
<output>54</output>

<result>54</result>