Uncle Li's vegetable plot is rectangular, one long side is against the wall, and the other three sides are surrounded by fences. If two widths are exactly equal to one length, and the fence is 48 meters long: what is the area of this vegetable field in square meters?
李大爷家的菜地是长方形的，一条长边靠墙，另外的三边围了篱笆．如果两条宽刚好与一条长相等，篱笆长48米：这块菜地的面积是多少平方米？
<gadget id="calculator">48 / 2</gadget>
<output>24</output>

<gadget id="calculator">24 / 2</gadget>
<output>12</output>

<gadget id="calculator">24 * 12</gadget>
<output>288</output>

<result>288</result>