如图,P是正方形ABCD对角线BD上一点,PE⊥DC,PF⊥BC,E、F分别为垂足,1、若CF=3,CE=4,求AP和BD的长.在加一个问!(2)若BD=2,求四边形PECF的周长!
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![如图,P是正方形ABCD对角线BD上一点,PE⊥DC,PF⊥BC,E、F分别为垂足,1、若CF=3,CE=4,求AP和BD的长.在加一个问!(2)若BD=2,求四边形PECF的周长!](/uploads/image/z/5036623-7-3.jpg?t=%E5%A6%82%E5%9B%BE%2CP%E6%98%AF%E6%AD%A3%E6%96%B9%E5%BD%A2ABCD%E5%AF%B9%E8%A7%92%E7%BA%BFBD%E4%B8%8A%E4%B8%80%E7%82%B9%2CPE%E2%8A%A5DC%2CPF%E2%8A%A5BC%2CE%E3%80%81F%E5%88%86%E5%88%AB%E4%B8%BA%E5%9E%82%E8%B6%B3%2C1%E3%80%81%E8%8B%A5CF%3D3%2CCE%3D4%2C%E6%B1%82AP%E5%92%8CBD%E7%9A%84%E9%95%BF%EF%BC%8E%E5%9C%A8%E5%8A%A0%E4%B8%80%E4%B8%AA%E9%97%AE%21%EF%BC%882%EF%BC%89%E8%8B%A5BD%3D2%2C%E6%B1%82%E5%9B%9B%E8%BE%B9%E5%BD%A2PECF%E7%9A%84%E5%91%A8%E9%95%BF%21)
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