A rectangle and a square have the same perimeter. The length of the rectangle is 10 meters and the width is 6 meters. What is the side length of the square?
一个长方形和一个正方形的周长相等，长方形的长为10米，宽为6米，那么正方形的边长为多少米？
<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>