A square and a rectangle have the same perimeter, the side length of the square is 8 cm, and the length of the rectangle is 10 cm, what is the width in cm?
一个正方形和一个长方形的周长相等，正方形的边长是8cm，长方形的长是10cm，则宽是多少cm．
<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">4 * 4</gadget>
<output>16</output>

<gadget id="calculator">16 - 10</gadget>
<output>6</output>

<result>6</result>