The perimeter of the rectangle and the square are equal. The length of the rectangle is 10 cm and the width is 6 cm. What is the side length of the square in cm?
长方形和正方形的周长相等，长方形长10厘米，宽6厘米，正方形边长厘米多少．
<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>