如图9,在平面直角坐标系中,A(2,3),B(5,3),C(2,5)是三角形的三个顶点,(1)求BC 的长.(2)将△ABC绕点A顺时针旋转90°得△AED,请直接写出D,E两点的坐标.(3)在y轴上是否存在点P,使△PDE为等腰
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![如图9,在平面直角坐标系中,A(2,3),B(5,3),C(2,5)是三角形的三个顶点,(1)求BC 的长.(2)将△ABC绕点A顺时针旋转90°得△AED,请直接写出D,E两点的坐标.(3)在y轴上是否存在点P,使△PDE为等腰](/uploads/image/z/3821700-12-0.jpg?t=%E5%A6%82%E5%9B%BE9%2C%E5%9C%A8%E5%B9%B3%E9%9D%A2%E7%9B%B4%E8%A7%92%E5%9D%90%E6%A0%87%E7%B3%BB%E4%B8%AD%2CA%EF%BC%882%2C3%EF%BC%89%2CB%285%2C3%29%2CC%EF%BC%882%2C5%EF%BC%89%E6%98%AF%E4%B8%89%E8%A7%92%E5%BD%A2%E7%9A%84%E4%B8%89%E4%B8%AA%E9%A1%B6%E7%82%B9%2C%EF%BC%881%EF%BC%89%E6%B1%82BC+%E7%9A%84%E9%95%BF.%EF%BC%882%EF%BC%89%E5%B0%86%E2%96%B3ABC%E7%BB%95%E7%82%B9A%E9%A1%BA%E6%97%B6%E9%92%88%E6%97%8B%E8%BD%AC90%C2%B0%E5%BE%97%E2%96%B3AED%2C%E8%AF%B7%E7%9B%B4%E6%8E%A5%E5%86%99%E5%87%BAD%2CE%E4%B8%A4%E7%82%B9%E7%9A%84%E5%9D%90%E6%A0%87.%EF%BC%883%EF%BC%89%E5%9C%A8y%E8%BD%B4%E4%B8%8A%E6%98%AF%E5%90%A6%E5%AD%98%E5%9C%A8%E7%82%B9P%2C%E4%BD%BF%E2%96%B3PDE%E4%B8%BA%E7%AD%89%E8%85%B0)
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