如图,△ABC为圆O的内接三角形,AB为圆O的直径,点D在圆O上,∠ADC=68°则∠BAC=多少度①如图,△ABC为圆O的内接三角形,AB为圆O的直径,点D在圆O上,∠ADC=68°则∠BAC=( )°在Rt△ABC中,∠BAC=90°,∠B=30°,线
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![如图,△ABC为圆O的内接三角形,AB为圆O的直径,点D在圆O上,∠ADC=68°则∠BAC=多少度①如图,△ABC为圆O的内接三角形,AB为圆O的直径,点D在圆O上,∠ADC=68°则∠BAC=( )°在Rt△ABC中,∠BAC=90°,∠B=30°,线](/uploads/image/z/8571254-14-4.jpg?t=%E5%A6%82%E5%9B%BE%2C%E2%96%B3ABC%E4%B8%BA%E5%9C%86O%E7%9A%84%E5%86%85%E6%8E%A5%E4%B8%89%E8%A7%92%E5%BD%A2%2CAB%E4%B8%BA%E5%9C%86O%E7%9A%84%E7%9B%B4%E5%BE%84%2C%E7%82%B9D%E5%9C%A8%E5%9C%86O%E4%B8%8A%2C%E2%88%A0ADC%3D68%C2%B0%E5%88%99%E2%88%A0BAC%3D%E5%A4%9A%E5%B0%91%E5%BA%A6%E2%91%A0%E5%A6%82%E5%9B%BE%2C%E2%96%B3ABC%E4%B8%BA%E5%9C%86O%E7%9A%84%E5%86%85%E6%8E%A5%E4%B8%89%E8%A7%92%E5%BD%A2%2CAB%E4%B8%BA%E5%9C%86O%E7%9A%84%E7%9B%B4%E5%BE%84%2C%E7%82%B9D%E5%9C%A8%E5%9C%86O%E4%B8%8A%2C%E2%88%A0ADC%3D68%C2%B0%E5%88%99%E2%88%A0BAC%3D%EF%BC%88+%EF%BC%89%C2%B0%E5%9C%A8Rt%E2%96%B3ABC%E4%B8%AD%2C%E2%88%A0BAC%3D90%C2%B0%2C%E2%88%A0B%3D30%C2%B0%2C%E7%BA%BF)
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