已知∠ADG=∠ACB,∠1=∠2.求证;CG平行EF.(填空,并在后面的括号里填理由)证明:∵∠AGD=∠ACB ( ) ∴DG∥____ ( ) ∴∠3=____ ( ) ∵∠1=∠2 ( ) ∴∠3=____ (等量代换)
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![已知∠ADG=∠ACB,∠1=∠2.求证;CG平行EF.(填空,并在后面的括号里填理由)证明:∵∠AGD=∠ACB ( ) ∴DG∥____ ( ) ∴∠3=____ ( ) ∵∠1=∠2 ( ) ∴∠3=____ (等量代换)](/uploads/image/z/14839265-65-5.jpg?t=%E5%B7%B2%E7%9F%A5%E2%88%A0ADG%3D%E2%88%A0ACB%2C%E2%88%A01%3D%E2%88%A02.%E6%B1%82%E8%AF%81%3BCG%E5%B9%B3%E8%A1%8CEF.%28%E5%A1%AB%E7%A9%BA%2C%E5%B9%B6%E5%9C%A8%E5%90%8E%E9%9D%A2%E7%9A%84%E6%8B%AC%E5%8F%B7%E9%87%8C%E5%A1%AB%E7%90%86%E7%94%B1%29%E8%AF%81%E6%98%8E%EF%BC%9A%E2%88%B5%E2%88%A0AGD%EF%BC%9D%E2%88%A0ACB+%EF%BC%88+%EF%BC%89+%E2%88%B4DG%E2%88%A5%EF%BC%BF%EF%BC%BF%EF%BC%BF%EF%BC%BF+%EF%BC%88+%EF%BC%89+%E2%88%B4%E2%88%A03%EF%BC%9D%EF%BC%BF%EF%BC%BF%EF%BC%BF%EF%BC%BF+%EF%BC%88+%EF%BC%89+%E2%88%B5%E2%88%A01%EF%BC%9D%E2%88%A02+%EF%BC%88+%EF%BC%89+%E2%88%B4%E2%88%A03%EF%BC%9D%EF%BC%BF%EF%BC%BF%EF%BC%BF%EF%BC%BF+%EF%BC%88%E7%AD%89%E9%87%8F%E4%BB%A3%E6%8D%A2%EF%BC%89)
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