The perimeter of a parallelogram is 24 centimeters, one side is 8 centimeters, and what is the length of the other adjacent side in centimeters.
一个平行四边形的周长是24厘米，其中的一条边是8厘米，相邻的另一条边长是多少厘米．
<gadget id="calculator">24 / 2</gadget>
<output>12</output>

<gadget id="calculator">12 - 8</gadget>
<output>4</output>

<result>4</result>