等腰梯形ABCD中，E、F、G、H分别是各边的中点，则四边形EFGH的形状是(    )

   Do you like Home with Kids(《家有儿女》)?It is very popular(受欢迎的)now. Many children like it. There are five people in the family. There is a sister and two brothers in their family.

   Their father is a film director(导演). He doesn’t often do housework. He is always happy. Their mother doesn’t go to work. She stays at home and does housework. And she loves her children very much, but she gets angry easily. Xiaoxue is their daughter. She is a good student. Big brother, Liu Xing, can always make others happy. He likes ball games. Little brother, Xiaoyu, is helpful. He likes playing computer games. This is a happy family.

翻译下面的句子

如图，直线l₁∥l₂，∠1＝45°，∠2＝75°，则∠3等于（ ）