A rectangle is surrounded by an iron wire. The length of the rectangle is 8 meters and the width is 6 meters. How long is the iron wire? If a square is surrounded by this wire, what is the side length of the square?
用一根铁丝围成一个长方形，长方形的长是8米，宽是6米，这根铁丝有多长？如果用这根铁丝围成一个正方形，这个正方形的边长是多少？
<gadget id="calculator">8 + 6</gadget>
<output>14</output>

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

<gadget id="calculator">14 * (1/2)</gadget>
<output>7</output>

<result>7</result>