一道三角形证明题:在△ABC中,AB=14CM,AD/BD=5/9,DE//BC,CD⊥AB,CD=12CM,则△ADE面积为__RT, 在△ABC中,AB=14CM,AD/BD=5/9,DE//BC,CD⊥AB,CD=12CM,则△ADE面积为__
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![一道三角形证明题:在△ABC中,AB=14CM,AD/BD=5/9,DE//BC,CD⊥AB,CD=12CM,则△ADE面积为__RT, 在△ABC中,AB=14CM,AD/BD=5/9,DE//BC,CD⊥AB,CD=12CM,则△ADE面积为__](/uploads/image/z/2089382-14-2.jpg?t=%E4%B8%80%E9%81%93%E4%B8%89%E8%A7%92%E5%BD%A2%E8%AF%81%E6%98%8E%E9%A2%98%3A%E5%9C%A8%E2%96%B3ABC%E4%B8%AD%2CAB%3D14CM%2CAD%2FBD%3D5%2F9%2CDE%2F%2FBC%2CCD%E2%8A%A5AB%2CCD%3D12CM%2C%E5%88%99%E2%96%B3ADE%E9%9D%A2%E7%A7%AF%E4%B8%BA__RT%2C++++++%E5%9C%A8%E2%96%B3ABC%E4%B8%AD%2CAB%3D14CM%2CAD%2FBD%3D5%2F9%2CDE%2F%2FBC%2CCD%E2%8A%A5AB%2CCD%3D12CM%2C%E5%88%99%E2%96%B3ADE%E9%9D%A2%E7%A7%AF%E4%B8%BA__)
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