Uncle Wang used 24 1-meter-long wooden sticks to form a rectangular sheepfold. If the sheepfold is 8 meters long, what is the approximate area?
王叔叔用24根1米长的木棍围成一个长方形羊圈，如果围成的羊圈长8米，面积大约是多少平方米？
<gadget id="calculator">24 / 2</gadget>
<output>12</output>

<gadget id="calculator">12 - 8</gadget>
<output>4</output>

<gadget id="calculator">8 * 4</gadget>
<output>32</output>

<result>32</result>