A square has a perimeter of 24 cm and one side is against a wall, find the area of the square.
一个正方形的周长24厘米，一边靠墙，求正方形的面积．
<gadget id="calculator">24 / 3</gadget>
<output>8</output>

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

<result>64</result>