原文中有个别字母打错,下面已经改过来了：
As shown in the following diagram,the area of Triangle ABC is 56 square centimeters,which is two time of the area of Parallelogram DEFC.Then,how many square centimeters is the area of the shaded part?
翻译：
如下图所示,三角形ABC的面积是56平方厘米,为平行四边形DEFC面积的两倍.那么,阴影部分的面积是多少平方厘米呢?