如图,在平行四边形ABCD中,BC=2AB=4,点E,F分别是BC,AD的中点 ①求证:ABE全等△如图,在平行四边形ABCD中,BC=2AB=4,点E,F分别是BC,AD的中点①求证:ABE全等△CDF;②当四边形AECF为菱形时,求该菱形的面积
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![如图,在平行四边形ABCD中,BC=2AB=4,点E,F分别是BC,AD的中点 ①求证:ABE全等△如图,在平行四边形ABCD中,BC=2AB=4,点E,F分别是BC,AD的中点①求证:ABE全等△CDF;②当四边形AECF为菱形时,求该菱形的面积](/uploads/image/z/3186386-26-6.jpg?t=%E5%A6%82%E5%9B%BE%2C%E5%9C%A8%E5%B9%B3%E8%A1%8C%E5%9B%9B%E8%BE%B9%E5%BD%A2ABCD%E4%B8%AD%2CBC%3D2AB%3D4%2C%E7%82%B9E%2CF%E5%88%86%E5%88%AB%E6%98%AFBC%2CAD%E7%9A%84%E4%B8%AD%E7%82%B9+%E2%91%A0%E6%B1%82%E8%AF%81%3AABE%E5%85%A8%E7%AD%89%E2%96%B3%E5%A6%82%E5%9B%BE%2C%E5%9C%A8%E5%B9%B3%E8%A1%8C%E5%9B%9B%E8%BE%B9%E5%BD%A2ABCD%E4%B8%AD%2CBC%3D2AB%3D4%2C%E7%82%B9E%2CF%E5%88%86%E5%88%AB%E6%98%AFBC%2CAD%E7%9A%84%E4%B8%AD%E7%82%B9%E2%91%A0%E6%B1%82%E8%AF%81%3AABE%E5%85%A8%E7%AD%89%E2%96%B3CDF%3B%E2%91%A1%E5%BD%93%E5%9B%9B%E8%BE%B9%E5%BD%A2AECF%E4%B8%BA%E8%8F%B1%E5%BD%A2%E6%97%B6%2C%E6%B1%82%E8%AF%A5%E8%8F%B1%E5%BD%A2%E7%9A%84%E9%9D%A2%E7%A7%AF)
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