如图,等腰梯形ABCD中,AD平行于BC,BD平分∠ABC.(1)求证:AB=AD(2)若AD=2,∠C=60°,求梯形ABCD的周长.把过程写的看得清楚点,..
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![如图,等腰梯形ABCD中,AD平行于BC,BD平分∠ABC.(1)求证:AB=AD(2)若AD=2,∠C=60°,求梯形ABCD的周长.把过程写的看得清楚点,..](/uploads/image/z/10750530-66-0.jpg?t=%E5%A6%82%E5%9B%BE%2C%E7%AD%89%E8%85%B0%E6%A2%AF%E5%BD%A2ABCD%E4%B8%AD%2CAD%E5%B9%B3%E8%A1%8C%E4%BA%8EBC%2CBD%E5%B9%B3%E5%88%86%E2%88%A0ABC.%EF%BC%881%EF%BC%89%E6%B1%82%E8%AF%81%EF%BC%9AAB%3DAD%EF%BC%882%EF%BC%89%E8%8B%A5AD%3D2%2C%E2%88%A0C%3D60%C2%B0%2C%E6%B1%82%E6%A2%AF%E5%BD%A2ABCD%E7%9A%84%E5%91%A8%E9%95%BF.%E6%8A%8A%E8%BF%87%E7%A8%8B%E5%86%99%E7%9A%84%E7%9C%8B%E5%BE%97%E6%B8%85%E6%A5%9A%E7%82%B9%2C..)
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