A rectangle and a square have the same perimeter. Given that the area of the rectangle is 48 cm2 and its width is 4 cm, what is the area of the square in cm2?
一个长方形和一个正方形的周长相等，已知长方形的面积是48平方厘米，宽4厘米，正方形的面积是多少平方厘米？
<gadget id="calculator">48 / 4</gadget>
<output>12</output>

<gadget id="calculator">12 + 4</gadget>
<output>16</output>

<gadget id="calculator">16 * 2</gadget>
<output>32</output>

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

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

<result>64</result>