阴影部分的面积是24平方厘米，E、F分别是AB和BC的中点，平行四边形ABCD的面积是_1平方厘米．

题干

阴影部分的面积是24平方厘米，E、F分别是AB和BC的中点，平行四边形ABCD的面积是____ 平方厘米．

上一题下一题 0.0难度选择题更新时间:2019-02-23 07:37:56

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Sunday 8:30---11:30 Personal(个人的) Inventions（发明） You can see many inventions by the students; you may also bring your own inventions.	Monday 19:00---21:00 Space（太空） and Man Dr. Thomas West If you want to know more about the universe（宇宙）.
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