在三角形ABC中,∠ACB=90°,AD是角的平分线,CG是高,交AD于F,ED⊥AB于E,试说明四边形CDEF是菱形.
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![在三角形ABC中,∠ACB=90°,AD是角的平分线,CG是高,交AD于F,ED⊥AB于E,试说明四边形CDEF是菱形.](/uploads/image/z/4318092-36-2.jpg?t=%E5%9C%A8%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E4%B8%AD%2C%E2%88%A0ACB%EF%BC%9D90%C2%B0%2CAD%E6%98%AF%E8%A7%92%E7%9A%84%E5%B9%B3%E5%88%86%E7%BA%BF%2CCG%E6%98%AF%E9%AB%98%2C%E4%BA%A4AD%E4%BA%8EF%2CED%E2%8A%A5AB%E4%BA%8EE%2C%E8%AF%95%E8%AF%B4%E6%98%8E%E5%9B%9B%E8%BE%B9%E5%BD%A2CDEF%E6%98%AF%E8%8F%B1%E5%BD%A2.)
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