The perimeter of a square is equal to the perimeter of a rectangle with a length of 16 meters and a width of 8 meters. What is the side length of the square?
一个正方形的周长与一个长16米、宽8米的长方形的周长相等，这个正方形的边长是多少米？
<gadget id="calculator">16 + 8</gadget>
<output>24</output>

<gadget id="calculator">2 / 4</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">24 * (1/2)</gadget>
<output>12</output>

<result>12</result>