数学至尊来,垃圾别来!如图,四边形ABCD是等腰梯形,BC//AD,AB=DC,BC=2AD=4cm,BD垂直CD,AC垂直AB,BC边的中点为E!(1)判断三角形ADE的形状(说理由)(2)求AB的长!(3)AC和DE是否互相垂直?说理由!只回答
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![数学至尊来,垃圾别来!如图,四边形ABCD是等腰梯形,BC//AD,AB=DC,BC=2AD=4cm,BD垂直CD,AC垂直AB,BC边的中点为E!(1)判断三角形ADE的形状(说理由)(2)求AB的长!(3)AC和DE是否互相垂直?说理由!只回答](/uploads/image/z/7047317-29-7.jpg?t=%E6%95%B0%E5%AD%A6%E8%87%B3%E5%B0%8A%E6%9D%A5%2C%E5%9E%83%E5%9C%BE%E5%88%AB%E6%9D%A5%21%E5%A6%82%E5%9B%BE%2C%E5%9B%9B%E8%BE%B9%E5%BD%A2ABCD%E6%98%AF%E7%AD%89%E8%85%B0%E6%A2%AF%E5%BD%A2%2CBC%2F%2FAD%2CAB%3DDC%2CBC%3D2AD%3D4cm%2CBD%E5%9E%82%E7%9B%B4CD%2CAC%E5%9E%82%E7%9B%B4AB%2CBC%E8%BE%B9%E7%9A%84%E4%B8%AD%E7%82%B9%E4%B8%BAE%21%EF%BC%881%EF%BC%89%E5%88%A4%E6%96%AD%E4%B8%89%E8%A7%92%E5%BD%A2ADE%E7%9A%84%E5%BD%A2%E7%8A%B6%EF%BC%88%E8%AF%B4%E7%90%86%E7%94%B1%EF%BC%89%EF%BC%882%EF%BC%89%E6%B1%82AB%E7%9A%84%E9%95%BF%21%EF%BC%883%EF%BC%89AC%E5%92%8CDE%E6%98%AF%E5%90%A6%E4%BA%92%E7%9B%B8%E5%9E%82%E7%9B%B4%3F%E8%AF%B4%E7%90%86%E7%94%B1%21%E5%8F%AA%E5%9B%9E%E7%AD%94)
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