square flower bed, one side is against the wall, and the other three sides are surrounded by fences, the length of the fence is 24m, find the area of this flower bed.
一个正方形花坛，一边靠墙，其余三边围篱笆，篱笆长24m，求这个花坛的面积．
<gadget id="calculator">24 / 3</gadget>
<output>8</output>

<gadget id="calculator">8 * 8</gadget>
<output>64</output>

<result>64</result>