If the perimeter of a parallelogram is 26 cm and one side is 8 cm long, what is the length of its other adjacent side in cm?
一个平行四边形的周长是26厘米，一边长是8厘米，它的另一邻边的长是多少厘米？
<gadget id="calculator">26 / 2</gadget>
<output>13</output>

<gadget id="calculator">13 - 8</gadget>
<output>5</output>

<result>5</result>