A rectangle is 10 meters long and 6 meters wide. Its perimeter is equal to the perimeter of a square. What is the side length of the square?
长方形长10米，宽6米，它的周长和一个正方形周长相等，这个正方形的边长多少米？
<gadget id="calculator">10 + 6</gadget>
<output>16</output>

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

<gadget id="calculator">16 * (1/2)</gadget>
<output>8</output>

<result>8</result>