三角形ABC是边长为1的等边三角形,BD=CD,角BDC=120,E,F分别在AB,AC上,角EDF=60,求三角形AEF的周长
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![三角形ABC是边长为1的等边三角形,BD=CD,角BDC=120,E,F分别在AB,AC上,角EDF=60,求三角形AEF的周长](/uploads/image/z/3714358-22-8.jpg?t=%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E6%98%AF%E8%BE%B9%E9%95%BF%E4%B8%BA1%E7%9A%84%E7%AD%89%E8%BE%B9%E4%B8%89%E8%A7%92%E5%BD%A2%2CBD%3DCD%2C%E8%A7%92BDC%3D120%2CE%2CF%E5%88%86%E5%88%AB%E5%9C%A8AB%2CAC%E4%B8%8A%2C%E8%A7%92EDF%3D60%2C%E6%B1%82%E4%B8%89%E8%A7%92%E5%BD%A2AEF%E7%9A%84%E5%91%A8%E9%95%BF)
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