如图,ab是圆o的直径,af是圆o的切线,cd是垂直于ab的弦,垂足为e,过点c作da的平行线于af交于f,cd=4根号3,be=2,求:四边形fadc是菱形,fc是圆o的切线
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![如图,ab是圆o的直径,af是圆o的切线,cd是垂直于ab的弦,垂足为e,过点c作da的平行线于af交于f,cd=4根号3,be=2,求:四边形fadc是菱形,fc是圆o的切线](/uploads/image/z/2798251-43-1.jpg?t=%E5%A6%82%E5%9B%BE%2Cab%E6%98%AF%E5%9C%86o%E7%9A%84%E7%9B%B4%E5%BE%84%2Caf%E6%98%AF%E5%9C%86o%E7%9A%84%E5%88%87%E7%BA%BF%2Ccd%E6%98%AF%E5%9E%82%E7%9B%B4%E4%BA%8Eab%E7%9A%84%E5%BC%A6%2C%E5%9E%82%E8%B6%B3%E4%B8%BAe%2C%E8%BF%87%E7%82%B9c%E4%BD%9Cda%E7%9A%84%E5%B9%B3%E8%A1%8C%E7%BA%BF%E4%BA%8Eaf%E4%BA%A4%E4%BA%8Ef%2Ccd%3D4%E6%A0%B9%E5%8F%B73%EF%BC%8Cbe%3D2%EF%BC%8C%E6%B1%82%3A%E5%9B%9B%E8%BE%B9%E5%BD%A2fadc%E6%98%AF%E8%8F%B1%E5%BD%A2%EF%BC%8Cfc%E6%98%AF%E5%9C%86o%E7%9A%84%E5%88%87%E7%BA%BF)
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